./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:23:08,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:23:08,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:23:08,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:23:08,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:23:08,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:23:08,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:23:08,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:23:08,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:23:08,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:23:08,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:23:08,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:23:08,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:23:08,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:23:08,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:23:08,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:23:08,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:23:08,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:23:08,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:23:08,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:23:08,198 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:23:08,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:23:08,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:23:08,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:23:08,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:23:08,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:23:08,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:23:08,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:23:08,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:23:08,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:23:08,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:23:08,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:23:08,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:23:08,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:23:08,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:23:08,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:23:08,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:23:08,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:23:08,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:23:08,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:23:08,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:23:08,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:23:08,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 14:23:08,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:23:08,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:23:08,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:23:08,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:23:08,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:23:08,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:23:08,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:23:08,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:23:08,267 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:23:08,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:23:08,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 14:23:08,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:23:08,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:23:08,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:23:08,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:23:08,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:23:08,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:23:08,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:23:08,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:23:08,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:23:08,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:23:08,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:23:08,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:23:08,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:23:08,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2022-07-21 14:23:08,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:23:08,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:23:08,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:23:08,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:23:08,638 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:23:08,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-21 14:23:08,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc224a73/63ddbdc71a394d7faa8218712f8bbd85/FLAG8f874b9ab [2022-07-21 14:23:09,460 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:23:09,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-21 14:23:09,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc224a73/63ddbdc71a394d7faa8218712f8bbd85/FLAG8f874b9ab [2022-07-21 14:23:09,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc224a73/63ddbdc71a394d7faa8218712f8bbd85 [2022-07-21 14:23:09,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:23:09,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:23:09,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:23:09,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:23:09,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:23:09,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:23:09" (1/1) ... [2022-07-21 14:23:09,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71568e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:09, skipping insertion in model container [2022-07-21 14:23:09,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:23:09" (1/1) ... [2022-07-21 14:23:09,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:23:10,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:23:13,654 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-21 14:23:13,657 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-21 14:23:13,658 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-21 14:23:13,658 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-21 14:23:13,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:23:13,695 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:23:14,252 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: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) [2022-07-21 14:23:14,258 INFO L158 Benchmark]: Toolchain (without parser) took 4281.83ms. Allocated memory was 65.0MB in the beginning and 172.0MB in the end (delta: 107.0MB). Free memory was 39.0MB in the beginning and 61.9MB in the end (delta: -23.0MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. [2022-07-21 14:23:14,259 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 14:23:14,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4280.21ms. Allocated memory was 65.0MB in the beginning and 172.0MB in the end (delta: 107.0MB). Free memory was 39.0MB in the beginning and 61.9MB in the end (delta: -23.0MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. [2022-07-21 14:23:14,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4280.21ms. Allocated memory was 65.0MB in the beginning and 172.0MB in the end (delta: 107.0MB). Free memory was 39.0MB in the beginning and 61.9MB in the end (delta: -23.0MB). Peak memory consumption was 95.3MB. 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:23:15,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:23:15,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:23:16,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:23:16,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:23:16,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:23:16,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:23:16,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:23:16,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:23:16,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:23:16,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:23:16,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:23:16,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:23:16,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:23:16,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:23:16,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:23:16,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:23:16,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:23:16,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:23:16,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:23:16,064 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:23:16,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:23:16,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:23:16,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:23:16,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:23:16,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:23:16,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:23:16,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:23:16,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:23:16,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:23:16,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:23:16,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:23:16,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:23:16,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:23:16,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:23:16,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:23:16,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:23:16,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:23:16,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:23:16,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:23:16,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:23:16,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:23:16,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 14:23:16,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:23:16,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:23:16,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:23:16,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:23:16,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:23:16,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:23:16,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:23:16,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:23:16,125 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:23:16,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:23:16,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:23:16,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:23:16,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:23:16,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:23:16,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:23:16,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:23:16,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:23:16,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:23:16,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:23:16,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:23:16,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:23:16,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:23:16,129 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 14:23:16,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 14:23:16,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:23:16,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:23:16,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:23:16,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 14:23:16,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2022-07-21 14:23:16,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:23:16,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:23:16,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:23:16,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:23:16,455 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:23:16,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-21 14:23:16,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e335f5/8a84ba3662f9402ba13bba105414510f/FLAG10c68a78d [2022-07-21 14:23:17,295 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:23:17,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-21 14:23:17,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e335f5/8a84ba3662f9402ba13bba105414510f/FLAG10c68a78d [2022-07-21 14:23:17,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e335f5/8a84ba3662f9402ba13bba105414510f [2022-07-21 14:23:17,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:23:17,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:23:17,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:23:17,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:23:17,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:23:17,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:23:17" (1/1) ... [2022-07-21 14:23:17,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b84bfc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:17, skipping insertion in model container [2022-07-21 14:23:17,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:23:17" (1/1) ... [2022-07-21 14:23:17,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:23:18,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:23:20,530 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-21 14:23:20,532 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-21 14:23:20,533 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-21 14:23:20,533 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-21 14:23:20,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:23:20,562 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 14:23:20,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:23:21,093 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-21 14:23:21,107 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-21 14:23:21,108 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-21 14:23:21,108 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-21 14:23:21,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:23:21,133 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:23:21,565 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-21 14:23:21,566 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-21 14:23:21,567 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-21 14:23:21,567 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-21 14:23:21,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:23:21,729 INFO L208 MainTranslator]: Completed translation [2022-07-21 14:23:21,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21 WrapperNode [2022-07-21 14:23:21,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 14:23:21,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 14:23:21,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 14:23:21,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 14:23:21,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:21,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,129 INFO L137 Inliner]: procedures = 407, calls = 6166, calls flagged for inlining = 164, calls inlined = 141, statements flattened = 13433 [2022-07-21 14:23:22,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 14:23:22,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 14:23:22,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 14:23:22,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 14:23:22,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 14:23:22,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 14:23:22,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 14:23:22,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 14:23:22,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (1/1) ... [2022-07-21 14:23:22,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:23:22,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 14:23:22,418 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) [2022-07-21 14:23:22,600 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 [2022-07-21 14:23:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 14:23:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 14:23:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure to_sd [2022-07-21 14:23:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sd [2022-07-21 14:23:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_tuner [2022-07-21 14:23:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_tuner [2022-07-21 14:23:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 14:23:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 14:23:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2388x [2022-07-21 14:23:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2388x [2022-07-21 14:23:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_tuner [2022-07-21 14:23:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_tuner [2022-07-21 14:23:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2583x [2022-07-21 14:23:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2583x [2022-07-21 14:23:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:23:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:23:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure to_ir_state [2022-07-21 14:23:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure to_ir_state [2022-07-21 14:23:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_ns [2022-07-21 14:23:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_ns [2022-07-21 14:23:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-07-21 14:23:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-07-21 14:23:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 14:23:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 14:23:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-07-21 14:23:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-07-21 14:23:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2022-07-21 14:23:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2022-07-21 14:23:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-07-21 14:23:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-07-21 14:23:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 14:23:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 14:23:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_sliced_fmt [2022-07-21 14:23:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_sliced_fmt [2022-07-21 14:23:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 14:23:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 14:23:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 14:23:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-21 14:23:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-21 14:23:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_resolution [2022-07-21 14:23:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_resolution [2022-07-21 14:23:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-21 14:23:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-21 14:23:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure cx25836_initialize [2022-07-21 14:23:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25836_initialize [2022-07-21 14:23:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write4 [2022-07-21 14:23:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write4 [2022-07-21 14:23:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ext_ctrls [2022-07-21 14:23:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ext_ctrls [2022-07-21 14:23:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_frequency [2022-07-21 14:23:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_frequency [2022-07-21 14:23:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 14:23:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 14:23:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_std_setup [2022-07-21 14:23:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_std_setup [2022-07-21 14:23:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-21 14:23:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-21 14:23:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 14:23:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 14:23:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_modulation_enable [2022-07-21 14:23:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_modulation_enable [2022-07-21 14:23:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure cx23885_initialize [2022-07-21 14:23:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23885_initialize [2022-07-21 14:23:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_raw_fmt [2022-07-21 14:23:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_raw_fmt [2022-07-21 14:23:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or [2022-07-21 14:23:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or [2022-07-21 14:23:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ctrl [2022-07-21 14:23:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ctrl [2022-07-21 14:23:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure set_audclk_freq [2022-07-21 14:23:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure set_audclk_freq [2022-07-21 14:23:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_g_parameters [2022-07-21 14:23:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_g_parameters [2022-07-21 14:23:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_initialize [2022-07-21 14:23:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_initialize [2022-07-21 14:23:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 14:23:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 14:23:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_input_status [2022-07-21 14:23:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_input_status [2022-07-21 14:23:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure lpf_count_to_ns [2022-07-21 14:23:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lpf_count_to_ns [2022-07-21 14:23:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:23:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:23:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_set_audclk_freq [2022-07-21 14:23:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_set_audclk_freq [2022-07-21 14:23:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 14:23:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_us [2022-07-21 14:23:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_us [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 14:23:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 14:23:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 14:23:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 14:23:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 14:23:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2022-07-21 14:23:22,628 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2022-07-21 14:23:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 14:23:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_decode_vbi_line [2022-07-21 14:23:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_decode_vbi_line [2022-07-21 14:23:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_clocks_to_clock_divider [2022-07-21 14:23:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_clocks_to_clock_divider [2022-07-21 14:23:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx231xx [2022-07-21 14:23:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx231xx [2022-07-21 14:23:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-21 14:23:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-21 14:23:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_probe [2022-07-21 14:23:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_probe [2022-07-21 14:23:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 14:23:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 14:23:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 14:23:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 14:23:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure odd_parity [2022-07-21 14:23:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure odd_parity [2022-07-21 14:23:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_enable [2022-07-21 14:23:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_enable [2022-07-21 14:23:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 14:23:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 14:23:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure filter_rx_s_min_width [2022-07-21 14:23:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_rx_s_min_width [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_shutdown [2022-07-21 14:23:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_shutdown [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 14:23:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 14:23:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 14:23:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ctrl [2022-07-21 14:23:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ctrl [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_s_parameters [2022-07-21 14:23:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_s_parameters [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 14:23:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 14:23:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 14:23:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure input_change [2022-07-21 14:23:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure input_change [2022-07-21 14:23:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_g_parameters [2022-07-21 14:23:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_g_parameters [2022-07-21 14:23:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_querymenu [2022-07-21 14:23:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_querymenu [2022-07-21 14:23:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:23:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:23:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 14:23:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 14:23:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_probe [2022-07-21 14:23:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_probe [2022-07-21 14:23:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 14:23:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 14:23:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_shutdown [2022-07-21 14:23:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_shutdown [2022-07-21 14:23:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 14:23:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 14:23:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_enable [2022-07-21 14:23:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_enable [2022-07-21 14:23:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 14:23:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 14:23:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 14:23:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 14:23:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_freq_to_clock_divider [2022-07-21 14:23:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_freq_to_clock_divider [2022-07-21 14:23:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_demodulation_enable [2022-07-21 14:23:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_demodulation_enable [2022-07-21 14:23:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-07-21 14:23:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-07-21 14:23:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 14:23:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 14:23:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 14:23:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write [2022-07-21 14:23:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write [2022-07-21 14:23:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 14:23:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_mbus_fmt [2022-07-21 14:23:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_mbus_fmt [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure set_volume [2022-07-21 14:23:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure set_volume [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure cx231xx_initialize [2022-07-21 14:23:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cx231xx_initialize [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ext_ctrls [2022-07-21 14:23:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ext_ctrls [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 14:23:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 14:23:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 14:23:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 14:23:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 14:23:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 14:23:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 14:23:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 14:23:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 14:23:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 14:23:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 14:23:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_try_ext_ctrls [2022-07-21 14:23:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_try_ext_ctrls [2022-07-21 14:23:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata___0 [2022-07-21 14:23:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata___0 [2022-07-21 14:23:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_tx [2022-07-21 14:23:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_tx [2022-07-21 14:23:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_queryctrl [2022-07-21 14:23:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_queryctrl [2022-07-21 14:23:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_freq [2022-07-21 14:23:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_freq [2022-07-21 14:23:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_std [2022-07-21 14:23:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_std [2022-07-21 14:23:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_s_parameters [2022-07-21 14:23:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_s_parameters [2022-07-21 14:23:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure to_state [2022-07-21 14:23:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure to_state [2022-07-21 14:23:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_register [2022-07-21 14:23:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_register [2022-07-21 14:23:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_register [2022-07-21 14:23:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_register [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure set_input [2022-07-21 14:23:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure set_input [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure cx23888_std_setup [2022-07-21 14:23:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23888_std_setup [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-21 14:23:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-21 14:23:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 14:23:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_rx [2022-07-21 14:23:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_rx [2022-07-21 14:23:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or4 [2022-07-21 14:23:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or4 [2022-07-21 14:23:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read [2022-07-21 14:23:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read [2022-07-21 14:23:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_sliced_fmt [2022-07-21 14:23:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_sliced_fmt [2022-07-21 14:23:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2022-07-21 14:23:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2022-07-21 14:23:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_adapter_id [2022-07-21 14:23:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_adapter_id [2022-07-21 14:23:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_carrier_freq [2022-07-21 14:23:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_carrier_freq [2022-07-21 14:23:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 14:23:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 14:23:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_s_edge_detection [2022-07-21 14:23:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_s_edge_detection [2022-07-21 14:23:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 14:23:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 14:23:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read4 [2022-07-21 14:23:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read4 [2022-07-21 14:23:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 14:23:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 14:23:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 14:23:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 14:23:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2022-07-21 14:23:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2022-07-21 14:23:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23885 [2022-07-21 14:23:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23885 [2022-07-21 14:23:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_pulse_clocks [2022-07-21 14:23:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_pulse_clocks [2022-07-21 14:23:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23888 [2022-07-21 14:23:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23888 [2022-07-21 14:23:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23887 [2022-07-21 14:23:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23887 [2022-07-21 14:23:23,706 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 14:23:23,708 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 14:23:26,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 14:26:26,485 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 14:26:26,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 14:26:26,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 14:26:26,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:26:26 BoogieIcfgContainer [2022-07-21 14:26:26,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 14:26:26,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 14:26:26,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 14:26:26,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 14:26:26,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:23:17" (1/3) ... [2022-07-21 14:26:26,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b3464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:26:26, skipping insertion in model container [2022-07-21 14:26:26,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:23:21" (2/3) ... [2022-07-21 14:26:26,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b3464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:26:26, skipping insertion in model container [2022-07-21 14:26:26,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:26:26" (3/3) ... [2022-07-21 14:26:26,532 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-21 14:26:26,541 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 14:26:26,541 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 14:26:26,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 14:26:26,702 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@6cfb7050, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3af3676 [2022-07-21 14:26:26,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 14:26:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) [2022-07-21 14:26:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 14:26:26,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:26:26,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:26:26,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:26:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:26:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 848135627, now seen corresponding path program 1 times [2022-07-21 14:26:26,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:26:26,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434603884] [2022-07-21 14:26:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:26:26,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:26:26,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:26:26,772 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) [2022-07-21 14:26:26,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 14:26:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:26:28,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:26:28,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:26:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:26:30,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:26:30,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:26:30,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434603884] [2022-07-21 14:26:30,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434603884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:26:30,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:26:30,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 14:26:30,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367273894] [2022-07-21 14:26:30,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:26:30,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:26:30,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:26:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:26:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 14:26:30,367 INFO L87 Difference]: Start difference. First operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 14:26:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:26:31,567 INFO L93 Difference]: Finished difference Result 16844 states and 25111 transitions. [2022-07-21 14:26:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 14:26:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-07-21 14:26:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:26:31,657 INFO L225 Difference]: With dead ends: 16844 [2022-07-21 14:26:31,657 INFO L226 Difference]: Without dead ends: 8426 [2022-07-21 14:26:31,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:26:31,727 INFO L413 NwaCegarLoop]: 12539 mSDtfsCounter, 12513 mSDsluCounter, 25070 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12514 SdHoareTripleChecker+Valid, 37609 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:26:31,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12514 Valid, 37609 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 14:26:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8426 states. [2022-07-21 14:26:34,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8426. [2022-07-21 14:26:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8426 states, 4828 states have (on average 1.1555509527754764) internal successors, (5579), 4854 states have internal predecessors, (5579), 3479 states have call successors, (3479), 117 states have call predecessors, (3479), 116 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-21 14:26:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 12534 transitions. [2022-07-21 14:26:34,736 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 12534 transitions. Word has length 48 [2022-07-21 14:26:34,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:26:34,737 INFO L495 AbstractCegarLoop]: Abstraction has 8426 states and 12534 transitions. [2022-07-21 14:26:34,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 14:26:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 12534 transitions. [2022-07-21 14:26:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 14:26:34,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:26:34,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:26:34,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 14:26:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:26:34,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:26:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:26:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1552207272, now seen corresponding path program 1 times [2022-07-21 14:26:34,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:26:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196615715] [2022-07-21 14:26:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:26:34,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:26:34,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:26:34,964 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) [2022-07-21 14:26:34,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 14:26:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:26:36,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:26:36,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:26:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:26:38,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:26:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:26:39,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:26:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196615715] [2022-07-21 14:26:39,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196615715] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:26:39,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:26:39,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:26:39,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690864760] [2022-07-21 14:26:39,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:26:39,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:26:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:26:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:26:39,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:26:39,696 INFO L87 Difference]: Start difference. First operand 8426 states and 12534 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 14:26:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:26:40,861 INFO L93 Difference]: Finished difference Result 8432 states and 12539 transitions. [2022-07-21 14:26:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:26:40,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-07-21 14:26:40,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:26:40,933 INFO L225 Difference]: With dead ends: 8432 [2022-07-21 14:26:40,934 INFO L226 Difference]: Without dead ends: 8430 [2022-07-21 14:26:40,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:26:40,947 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12513 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:26:40,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12513 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 14:26:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-07-21 14:26:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8430. [2022-07-21 14:26:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 4831 states have (on average 1.1554543572759264) internal successors, (5582), 4857 states have internal predecessors, (5582), 3479 states have call successors, (3479), 118 states have call predecessors, (3479), 117 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-21 14:26:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12537 transitions. [2022-07-21 14:26:43,813 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12537 transitions. Word has length 53 [2022-07-21 14:26:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:26:43,814 INFO L495 AbstractCegarLoop]: Abstraction has 8430 states and 12537 transitions. [2022-07-21 14:26:43,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 14:26:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12537 transitions. [2022-07-21 14:26:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 14:26:43,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:26:43,820 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:26:43,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 14:26:44,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:26:44,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:26:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:26:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash 821128619, now seen corresponding path program 1 times [2022-07-21 14:26:44,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:26:44,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856540920] [2022-07-21 14:26:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:26:44,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:26:44,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:26:44,042 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) [2022-07-21 14:26:44,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 14:26:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:26:45,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:26:45,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:26:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 14:26:47,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:26:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 14:26:48,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:26:48,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856540920] [2022-07-21 14:26:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856540920] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:26:48,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:26:48,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:26:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599160936] [2022-07-21 14:26:48,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:26:48,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:26:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:26:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:26:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:26:48,724 INFO L87 Difference]: Start difference. First operand 8430 states and 12537 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:26:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:26:49,968 INFO L93 Difference]: Finished difference Result 8436 states and 12542 transitions. [2022-07-21 14:26:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:26:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-21 14:26:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:26:50,021 INFO L225 Difference]: With dead ends: 8436 [2022-07-21 14:26:50,021 INFO L226 Difference]: Without dead ends: 8434 [2022-07-21 14:26:50,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:26:50,031 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12512 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:26:50,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12512 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 14:26:50,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-07-21 14:26:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 8434. [2022-07-21 14:26:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8434 states, 4834 states have (on average 1.1553578816714936) internal successors, (5585), 4860 states have internal predecessors, (5585), 3479 states have call successors, (3479), 119 states have call predecessors, (3479), 118 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-21 14:26:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8434 states to 8434 states and 12540 transitions. [2022-07-21 14:26:52,834 INFO L78 Accepts]: Start accepts. Automaton has 8434 states and 12540 transitions. Word has length 58 [2022-07-21 14:26:52,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:26:52,835 INFO L495 AbstractCegarLoop]: Abstraction has 8434 states and 12540 transitions. [2022-07-21 14:26:52,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:26:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8434 states and 12540 transitions. [2022-07-21 14:26:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 14:26:52,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:26:52,839 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:26:52,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 14:26:53,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:26:53,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:26:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:26:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1891276219, now seen corresponding path program 1 times [2022-07-21 14:26:53,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:26:53,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96638332] [2022-07-21 14:26:53,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:26:53,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:26:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:26:53,071 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) [2022-07-21 14:26:53,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 14:26:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:26:54,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 14:26:54,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:26:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:26:59,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:27:03,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:03,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96638332] [2022-07-21 14:27:03,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96638332] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 14:27:03,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 14:27:03,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-21 14:27:03,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476568107] [2022-07-21 14:27:03,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 14:27:03,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 14:27:03,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 14:27:03,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-21 14:27:03,423 INFO L87 Difference]: Start difference. First operand 8434 states and 12540 transitions. Second operand has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-21 14:27:15,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:15,492 INFO L93 Difference]: Finished difference Result 16523 states and 24565 transitions. [2022-07-21 14:27:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 14:27:15,493 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 73 [2022-07-21 14:27:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:15,552 INFO L225 Difference]: With dead ends: 16523 [2022-07-21 14:27:15,553 INFO L226 Difference]: Without dead ends: 8448 [2022-07-21 14:27:15,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-21 14:27:15,605 INFO L413 NwaCegarLoop]: 12508 mSDtfsCounter, 46 mSDsluCounter, 175028 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 187536 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:15,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 187536 Invalid, 499 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [39 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-07-21 14:27:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2022-07-21 14:27:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 8444. [2022-07-21 14:27:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8444 states, 4842 states have (on average 1.1551011978521273) internal successors, (5593), 4868 states have internal predecessors, (5593), 3481 states have call successors, (3481), 119 states have call predecessors, (3481), 118 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) [2022-07-21 14:27:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8444 states to 8444 states and 12552 transitions. [2022-07-21 14:27:18,665 INFO L78 Accepts]: Start accepts. Automaton has 8444 states and 12552 transitions. Word has length 73 [2022-07-21 14:27:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:18,665 INFO L495 AbstractCegarLoop]: Abstraction has 8444 states and 12552 transitions. [2022-07-21 14:27:18,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-21 14:27:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8444 states and 12552 transitions. [2022-07-21 14:27:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 14:27:18,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:18,667 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:18,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:18,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:18,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash -655923720, now seen corresponding path program 1 times [2022-07-21 14:27:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:18,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597192331] [2022-07-21 14:27:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:18,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:18,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:18,899 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) [2022-07-21 14:27:18,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 14:27:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:20,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:20,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:23,052 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:27:23,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:24,493 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:27:24,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:24,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597192331] [2022-07-21 14:27:24,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597192331] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:24,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:24,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:24,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265914581] [2022-07-21 14:27:24,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:24,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:24,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:24,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:24,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:24,495 INFO L87 Difference]: Start difference. First operand 8444 states and 12552 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:25,838 INFO L93 Difference]: Finished difference Result 8450 states and 12557 transitions. [2022-07-21 14:27:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:25,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-07-21 14:27:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:25,880 INFO L225 Difference]: With dead ends: 8450 [2022-07-21 14:27:25,881 INFO L226 Difference]: Without dead ends: 8448 [2022-07-21 14:27:25,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:25,888 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12511 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:25,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12511 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 14:27:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2022-07-21 14:27:29,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 8448. [2022-07-21 14:27:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8448 states, 4845 states have (on average 1.1550051599587203) internal successors, (5596), 4871 states have internal predecessors, (5596), 3481 states have call successors, (3481), 120 states have call predecessors, (3481), 119 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) [2022-07-21 14:27:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8448 states to 8448 states and 12555 transitions. [2022-07-21 14:27:29,309 INFO L78 Accepts]: Start accepts. Automaton has 8448 states and 12555 transitions. Word has length 63 [2022-07-21 14:27:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:29,310 INFO L495 AbstractCegarLoop]: Abstraction has 8448 states and 12555 transitions. [2022-07-21 14:27:29,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8448 states and 12555 transitions. [2022-07-21 14:27:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 14:27:29,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:29,311 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:29,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 14:27:29,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:29,532 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:27:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1754354293, now seen corresponding path program 1 times [2022-07-21 14:27:29,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:29,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002129474] [2022-07-21 14:27:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:29,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:29,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:29,536 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) [2022-07-21 14:27:29,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 14:27:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:31,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:31,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 14:27:33,458 INFO L328 TraceCheckSpWp]: Computing backward predicates...