./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:14:09,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:14:09,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:14:10,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:14:10,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:14:10,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:14:10,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:14:10,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:14:10,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:14:10,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:14:10,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:14:10,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:14:10,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:14:10,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:14:10,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:14:10,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:14:10,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:14:10,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:14:10,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:14:10,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:14:10,057 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:14:10,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:14:10,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:14:10,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:14:10,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:14:10,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:14:10,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:14:10,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:14:10,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:14:10,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:14:10,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:14:10,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:14:10,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:14:10,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:14:10,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:14:10,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:14:10,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:14:10,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:14:10,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:14:10,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:14:10,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:14:10,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:14:10,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:14:10,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:14:10,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:14:10,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:14:10,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:14:10,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:14:10,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:14:10,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:14:10,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:14:10,098 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:14:10,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:14:10,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:14:10,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:14:10,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:14:10,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:14:10,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:14:10,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:14:10,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:14:10,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:14:10,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:14:10,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:14:10,102 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:14:10,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:14:10,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:14:10,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-12 15:14:10,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:14:10,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:14:10,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:14:10,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:14:10,305 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:14:10,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-12 15:14:10,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41fb35aaa/b39eb6006f654ad0a72a5f0b6011a9e6/FLAG9b2cba645 [2022-07-12 15:14:11,005 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:14:11,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-12 15:14:11,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41fb35aaa/b39eb6006f654ad0a72a5f0b6011a9e6/FLAG9b2cba645 [2022-07-12 15:14:11,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41fb35aaa/b39eb6006f654ad0a72a5f0b6011a9e6 [2022-07-12 15:14:11,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:14:11,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:14:11,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:14:11,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:14:11,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:14:11,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:14:11" (1/1) ... [2022-07-12 15:14:11,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d692b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:11, skipping insertion in model container [2022-07-12 15:14:11,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:14:11" (1/1) ... [2022-07-12 15:14:11,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:14:11,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:14:13,396 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-12 15:14:13,398 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-12 15:14:13,399 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-12 15:14:13,399 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-12 15:14:13,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:14:13,462 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:14:13,625 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 15:14:13,632 INFO L158 Benchmark]: Toolchain (without parser) took 2492.21ms. Allocated memory was 104.9MB in the beginning and 243.3MB in the end (delta: 138.4MB). Free memory was 61.7MB in the beginning and 167.0MB in the end (delta: -105.3MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-07-12 15:14:13,633 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 15:14:13,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2490.60ms. Allocated memory was 104.9MB in the beginning and 243.3MB in the end (delta: 138.4MB). Free memory was 61.4MB in the beginning and 167.0MB in the end (delta: -105.6MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-07-12 15:14:13,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2490.60ms. Allocated memory was 104.9MB in the beginning and 243.3MB in the end (delta: 138.4MB). Free memory was 61.4MB in the beginning and 167.0MB in the end (delta: -105.6MB). Peak memory consumption was 70.2MB. 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:14:15,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:14:15,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:14:15,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:14:15,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:14:15,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:14:15,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:14:15,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:14:15,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:14:15,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:14:15,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:14:15,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:14:15,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:14:15,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:14:15,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:14:15,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:14:15,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:14:15,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:14:15,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:14:15,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:14:15,243 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:14:15,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:14:15,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:14:15,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:14:15,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:14:15,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:14:15,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:14:15,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:14:15,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:14:15,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:14:15,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:14:15,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:14:15,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:14:15,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:14:15,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:14:15,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:14:15,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:14:15,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:14:15,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:14:15,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:14:15,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:14:15,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:14:15,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 15:14:15,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:14:15,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:14:15,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:14:15,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:14:15,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:14:15,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:14:15,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:14:15,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:14:15,293 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:14:15,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:14:15,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:14:15,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:14:15,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:14:15,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:14:15,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:14:15,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:14:15,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:14:15,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:14:15,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:14:15,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:14:15,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 15:14:15,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-12 15:14:15,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:14:15,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:14:15,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:14:15,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:14:15,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:14:15,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-12 15:14:15,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0657499a/2eb99585d8244d0aa751ed265328eeb5/FLAG76c1d469a [2022-07-12 15:14:16,398 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:14:16,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-12 15:14:16,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0657499a/2eb99585d8244d0aa751ed265328eeb5/FLAG76c1d469a [2022-07-12 15:14:16,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0657499a/2eb99585d8244d0aa751ed265328eeb5 [2022-07-12 15:14:16,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:14:16,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:14:16,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:14:16,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:14:16,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:14:16,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:14:16" (1/1) ... [2022-07-12 15:14:16,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f83cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:16, skipping insertion in model container [2022-07-12 15:14:16,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:14:16" (1/1) ... [2022-07-12 15:14:16,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:14:16,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:14:18,911 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-12 15:14:18,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-12 15:14:18,914 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-12 15:14:18,914 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-12 15:14:18,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:14:19,004 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 15:14:19,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:14:19,321 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-12 15:14:19,321 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-12 15:14:19,322 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-12 15:14:19,322 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-12 15:14:19,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:14:19,343 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:14:19,568 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-12 15:14:19,568 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-12 15:14:19,569 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-12 15:14:19,569 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-12 15:14:19,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:14:19,782 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:14:19,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19 WrapperNode [2022-07-12 15:14:19,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:14:19,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:14:19,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:14:19,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:14:19,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:19,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,073 INFO L137 Inliner]: procedures = 551, calls = 2748, calls flagged for inlining = 264, calls inlined = 238, statements flattened = 6118 [2022-07-12 15:14:20,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:14:20,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:14:20,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:14:20,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:14:20,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:14:20,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:14:20,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:14:20,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:14:20,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (1/1) ... [2022-07-12 15:14:20,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:14:20,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:14:20,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:14:20,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:14:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 15:14:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 15:14:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2022-07-12 15:14:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2022-07-12 15:14:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:14:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:14:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2022-07-12 15:14:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2022-07-12 15:14:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:14:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:14:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:14:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:14:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-12 15:14:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-12 15:14:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:14:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:14:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-12 15:14:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-12 15:14:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:14:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:14:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 15:14:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 15:14:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 15:14:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 15:14:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 15:14:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 15:14:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 15:14:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 15:14:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2022-07-12 15:14:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2022-07-12 15:14:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:14:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:14:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:14:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:14:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2022-07-12 15:14:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2022-07-12 15:14:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2022-07-12 15:14:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2022-07-12 15:14:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2022-07-12 15:14:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2022-07-12 15:14:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:14:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:14:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:14:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:14:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:14:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:14:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:14:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:14:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:14:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:14:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 15:14:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-12 15:14:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 15:14:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 15:14:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 15:14:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-12 15:14:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-12 15:14:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2022-07-12 15:14:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2022-07-12 15:14:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-12 15:14:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-12 15:14:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2022-07-12 15:14:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2022-07-12 15:14:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 15:14:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 15:14:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2022-07-12 15:14:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2022-07-12 15:14:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:14:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:14:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 15:14:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 15:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2022-07-12 15:14:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2022-07-12 15:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2022-07-12 15:14:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2022-07-12 15:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:14:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2022-07-12 15:14:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2022-07-12 15:14:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:14:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:14:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2022-07-12 15:14:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2022-07-12 15:14:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:14:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:14:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-12 15:14:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-12 15:14:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:14:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:14:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:14:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:14:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-12 15:14:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-12 15:14:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:14:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:14:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:14:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:14:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2022-07-12 15:14:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2022-07-12 15:14:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2022-07-12 15:14:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2022-07-12 15:14:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:14:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:14:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:14:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:14:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:14:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:14:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:14:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-12 15:14:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 15:14:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:14:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:14:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 15:14:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:14:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:14:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 15:14:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 15:14:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2022-07-12 15:14:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-12 15:14:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 15:14:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:14:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:14:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 15:14:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 15:14:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 15:14:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2022-07-12 15:14:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 15:14:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 15:14:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2022-07-12 15:14:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2022-07-12 15:14:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:14:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:14:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 15:14:21,136 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:14:21,139 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:14:21,264 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:14:57,267 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:15:00,815 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:15:00,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:15:00,829 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-12 15:15:00,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:00 BoogieIcfgContainer [2022-07-12 15:15:00,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:15:00,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:15:00,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:15:00,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:15:00,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:14:16" (1/3) ... [2022-07-12 15:15:00,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2d5137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:00, skipping insertion in model container [2022-07-12 15:15:00,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:14:19" (2/3) ... [2022-07-12 15:15:00,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2d5137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:00, skipping insertion in model container [2022-07-12 15:15:00,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:00" (3/3) ... [2022-07-12 15:15:00,839 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-12 15:15:00,851 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:15:00,851 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:15:00,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:15:00,941 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@39fe205, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1460cc23 [2022-07-12 15:15:00,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:15:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) [2022-07-12 15:15:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 15:15:00,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:00,963 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:00,963 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)] === [2022-07-12 15:15:00,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:00,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2022-07-12 15:15:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:00,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176308094] [2022-07-12 15:15:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:00,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:00,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:00,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:01,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 15:15:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:02,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:02,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-12 15:15:02,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:02,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:02,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176308094] [2022-07-12 15:15:02,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176308094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:02,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:02,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:02,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873574995] [2022-07-12 15:15:02,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:02,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:02,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:02,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:02,681 INFO L87 Difference]: Start difference. First operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:03,050 INFO L93 Difference]: Finished difference Result 6818 states and 9545 transitions. [2022-07-12 15:15:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:03,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-07-12 15:15:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:03,088 INFO L225 Difference]: With dead ends: 6818 [2022-07-12 15:15:03,089 INFO L226 Difference]: Without dead ends: 4502 [2022-07-12 15:15:03,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:03,105 INFO L413 NwaCegarLoop]: 3773 mSDtfsCounter, 3061 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:03,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 6910 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-07-12 15:15:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4498. [2022-07-12 15:15:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3063 states have (on average 1.2396343454129939) internal successors, (3797), 3105 states have internal predecessors, (3797), 1197 states have call successors, (1197), 236 states have call predecessors, (1197), 235 states have return successors, (1194), 1190 states have call predecessors, (1194), 1194 states have call successors, (1194) [2022-07-12 15:15:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6188 transitions. [2022-07-12 15:15:03,328 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6188 transitions. Word has length 167 [2022-07-12 15:15:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:03,331 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 6188 transitions. [2022-07-12 15:15:03,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6188 transitions. [2022-07-12 15:15:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-12 15:15:03,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:03,339 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:03,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 15:15:03,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:03,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2022-07-12 15:15:03,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2022-07-12 15:15:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:03,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518576626] [2022-07-12 15:15:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:03,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:03,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:03,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:03,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 15:15:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:04,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:05,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-12 15:15:05,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:05,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:05,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518576626] [2022-07-12 15:15:05,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518576626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:05,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:05,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:05,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245812726] [2022-07-12 15:15:05,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:05,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:05,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:05,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:05,087 INFO L87 Difference]: Start difference. First operand 4498 states and 6188 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:05,503 INFO L93 Difference]: Finished difference Result 13216 states and 18204 transitions. [2022-07-12 15:15:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2022-07-12 15:15:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:05,555 INFO L225 Difference]: With dead ends: 13216 [2022-07-12 15:15:05,555 INFO L226 Difference]: Without dead ends: 8749 [2022-07-12 15:15:05,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:05,571 INFO L413 NwaCegarLoop]: 3750 mSDtfsCounter, 3057 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:05,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 6813 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8749 states. [2022-07-12 15:15:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8749 to 8711. [2022-07-12 15:15:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 5965 states have (on average 1.2442581726739312) internal successors, (7422), 6055 states have internal predecessors, (7422), 2286 states have call successors, (2286), 468 states have call predecessors, (2286), 457 states have return successors, (2299), 2251 states have call predecessors, (2299), 2283 states have call successors, (2299) [2022-07-12 15:15:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12007 transitions. [2022-07-12 15:15:05,883 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12007 transitions. Word has length 171 [2022-07-12 15:15:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:05,884 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12007 transitions. [2022-07-12 15:15:05,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12007 transitions. [2022-07-12 15:15:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 15:15:05,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:05,888 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:05,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:06,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2022-07-12 15:15:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2022-07-12 15:15:06,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:06,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108631124] [2022-07-12 15:15:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:06,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:06,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:06,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 15:15:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:07,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:07,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-12 15:15:07,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:07,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:07,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108631124] [2022-07-12 15:15:07,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108631124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:07,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:07,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:07,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253218214] [2022-07-12 15:15:07,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:07,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:07,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:07,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:07,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:07,561 INFO L87 Difference]: Start difference. First operand 8711 states and 12007 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 15:15:08,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:08,061 INFO L93 Difference]: Finished difference Result 25907 states and 35775 transitions. [2022-07-12 15:15:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:08,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-07-12 15:15:08,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:08,157 INFO L225 Difference]: With dead ends: 25907 [2022-07-12 15:15:08,157 INFO L226 Difference]: Without dead ends: 17227 [2022-07-12 15:15:08,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:08,199 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 3084 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:08,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6895 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17227 states. [2022-07-12 15:15:08,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17227 to 17185. [2022-07-12 15:15:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17185 states, 11779 states have (on average 1.2449274131929706) internal successors, (14664), 11965 states have internal predecessors, (14664), 4502 states have call successors, (4502), 930 states have call predecessors, (4502), 901 states have return successors, (4577), 4413 states have call predecessors, (4577), 4499 states have call successors, (4577) [2022-07-12 15:15:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 23743 transitions. [2022-07-12 15:15:08,788 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 23743 transitions. Word has length 184 [2022-07-12 15:15:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:08,789 INFO L495 AbstractCegarLoop]: Abstraction has 17185 states and 23743 transitions. [2022-07-12 15:15:08,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 15:15:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 23743 transitions. [2022-07-12 15:15:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 15:15:08,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:08,792 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:08,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:09,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:09,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2022-07-12 15:15:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2022-07-12 15:15:09,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:09,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40980501] [2022-07-12 15:15:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:09,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:09,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:09,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:09,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 15:15:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:10,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:10,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-12 15:15:10,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:10,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:10,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40980501] [2022-07-12 15:15:10,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40980501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:10,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:10,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:10,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146182589] [2022-07-12 15:15:10,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:10,530 INFO L87 Difference]: Start difference. First operand 17185 states and 23743 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:11,534 INFO L93 Difference]: Finished difference Result 46595 states and 64065 transitions. [2022-07-12 15:15:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 189 [2022-07-12 15:15:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:11,649 INFO L225 Difference]: With dead ends: 46595 [2022-07-12 15:15:11,650 INFO L226 Difference]: Without dead ends: 29441 [2022-07-12 15:15:11,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:11,711 INFO L413 NwaCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:11,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:15:11,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29441 states. [2022-07-12 15:15:12,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29441 to 29397. [2022-07-12 15:15:12,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29397 states, 19977 states have (on average 1.2353206187115182) internal successors, (24678), 20309 states have internal predecessors, (24678), 7722 states have call successors, (7722), 1754 states have call predecessors, (7722), 1695 states have return successors, (7871), 7545 states have call predecessors, (7871), 7719 states have call successors, (7871) [2022-07-12 15:15:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29397 states to 29397 states and 40271 transitions. [2022-07-12 15:15:12,792 INFO L78 Accepts]: Start accepts. Automaton has 29397 states and 40271 transitions. Word has length 189 [2022-07-12 15:15:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:12,795 INFO L495 AbstractCegarLoop]: Abstraction has 29397 states and 40271 transitions. [2022-07-12 15:15:12,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 15:15:12,795 INFO L276 IsEmpty]: Start isEmpty. Operand 29397 states and 40271 transitions. [2022-07-12 15:15:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-12 15:15:12,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:12,799 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:12,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:13,014 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)] === [2022-07-12 15:15:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash -35456696, now seen corresponding path program 1 times [2022-07-12 15:15:13,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:13,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461799807] [2022-07-12 15:15:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:13,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:13,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:13,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 15:15:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:14,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:14,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-07-12 15:15:14,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:14,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:14,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461799807] [2022-07-12 15:15:14,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461799807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:14,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:14,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:14,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804368340] [2022-07-12 15:15:14,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:14,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:14,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:14,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:14,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:14,613 INFO L87 Difference]: Start difference. First operand 29397 states and 40271 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:15:15,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:15,569 INFO L93 Difference]: Finished difference Result 58876 states and 80614 transitions. [2022-07-12 15:15:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:15,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 219 [2022-07-12 15:15:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:15,790 INFO L225 Difference]: With dead ends: 58876 [2022-07-12 15:15:15,790 INFO L226 Difference]: Without dead ends: 43956 [2022-07-12 15:15:15,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:15,847 INFO L413 NwaCegarLoop]: 6220 mSDtfsCounter, 3069 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 9356 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:15,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 9356 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43956 states. [2022-07-12 15:15:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43956 to 43931. [2022-07-12 15:15:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43931 states, 29862 states have (on average 1.2354497354497354) internal successors, (36893), 30351 states have internal predecessors, (36893), 11524 states have call successors, (11524), 2630 states have call predecessors, (11524), 2542 states have return successors, (11749), 11267 states have call predecessors, (11749), 11521 states have call successors, (11749) [2022-07-12 15:15:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43931 states to 43931 states and 60166 transitions. [2022-07-12 15:15:17,325 INFO L78 Accepts]: Start accepts. Automaton has 43931 states and 60166 transitions. Word has length 219 [2022-07-12 15:15:17,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:17,326 INFO L495 AbstractCegarLoop]: Abstraction has 43931 states and 60166 transitions. [2022-07-12 15:15:17,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:15:17,326 INFO L276 IsEmpty]: Start isEmpty. Operand 43931 states and 60166 transitions. [2022-07-12 15:15:17,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-12 15:15:17,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:17,329 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:17,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:17,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:17,547 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)] === [2022-07-12 15:15:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:17,548 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2022-07-12 15:15:17,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:17,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614410306] [2022-07-12 15:15:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:17,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:17,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:17,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:17,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 15:15:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:19,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:19,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-12 15:15:20,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:20,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:20,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614410306] [2022-07-12 15:15:20,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614410306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:20,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:20,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:20,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420620120] [2022-07-12 15:15:20,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:20,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:20,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:20,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:20,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:20,448 INFO L87 Difference]: Start difference. First operand 43931 states and 60166 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 15:15:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:21,393 INFO L93 Difference]: Finished difference Result 44671 states and 60910 transitions. [2022-07-12 15:15:21,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:21,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 219 [2022-07-12 15:15:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:21,750 INFO L225 Difference]: With dead ends: 44671 [2022-07-12 15:15:21,751 INFO L226 Difference]: Without dead ends: 44669 [2022-07-12 15:15:21,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:21,782 INFO L413 NwaCegarLoop]: 3183 mSDtfsCounter, 3059 mSDsluCounter, 6396 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:21,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 9579 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44669 states. [2022-07-12 15:15:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44669 to 44667. [2022-07-12 15:15:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44667 states, 30342 states have (on average 1.233999077186738) internal successors, (37442), 30879 states have internal predecessors, (37442), 11620 states have call successors, (11620), 2790 states have call predecessors, (11620), 2702 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-12 15:15:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44667 states to 44667 states and 60907 transitions. [2022-07-12 15:15:23,543 INFO L78 Accepts]: Start accepts. Automaton has 44667 states and 60907 transitions. Word has length 219 [2022-07-12 15:15:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:23,543 INFO L495 AbstractCegarLoop]: Abstraction has 44667 states and 60907 transitions. [2022-07-12 15:15:23,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-12 15:15:23,544 INFO L276 IsEmpty]: Start isEmpty. Operand 44667 states and 60907 transitions. [2022-07-12 15:15:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-12 15:15:23,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:23,552 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:23,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 15:15:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:23,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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)] === [2022-07-12 15:15:23,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2022-07-12 15:15:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:23,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622966717] [2022-07-12 15:15:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:23,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:23,792 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:23,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 15:15:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:25,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:25,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:26,442 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-12 15:15:26,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:15:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-12 15:15:26,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:26,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622966717] [2022-07-12 15:15:26,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622966717] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:15:26,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:15:26,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:15:26,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534426520] [2022-07-12 15:15:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:26,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:26,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:26,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:26,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:26,828 INFO L87 Difference]: Start difference. First operand 44667 states and 60907 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:15:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:27,715 INFO L93 Difference]: Finished difference Result 44673 states and 60912 transitions. [2022-07-12 15:15:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:15:27,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2022-07-12 15:15:27,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:27,964 INFO L225 Difference]: With dead ends: 44673 [2022-07-12 15:15:27,965 INFO L226 Difference]: Without dead ends: 44671 [2022-07-12 15:15:27,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:15:27,983 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:27,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:28,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44671 states. [2022-07-12 15:15:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44671 to 44671. [2022-07-12 15:15:29,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44671 states, 30345 states have (on average 1.2339759433185038) internal successors, (37445), 30882 states have internal predecessors, (37445), 11620 states have call successors, (11620), 2791 states have call predecessors, (11620), 2703 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-12 15:15:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44671 states to 44671 states and 60910 transitions. [2022-07-12 15:15:29,674 INFO L78 Accepts]: Start accepts. Automaton has 44671 states and 60910 transitions. Word has length 224 [2022-07-12 15:15:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:29,675 INFO L495 AbstractCegarLoop]: Abstraction has 44671 states and 60910 transitions. [2022-07-12 15:15:29,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:15:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 44671 states and 60910 transitions. [2022-07-12 15:15:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-12 15:15:29,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:29,680 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:29,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-12 15:15:29,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:29,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2022-07-12 15:15:29,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2022-07-12 15:15:29,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:29,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141212104] [2022-07-12 15:15:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:29,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:29,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:29,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:29,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 15:15:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:31,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:15:31,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-12 15:15:31,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:15:31,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:31,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141212104] [2022-07-12 15:15:31,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141212104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:31,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:31,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:15:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439069043] [2022-07-12 15:15:31,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:31,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:15:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:15:31,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:31,327 INFO L87 Difference]: Start difference. First operand 44671 states and 60910 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:15:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:32,524 INFO L93 Difference]: Finished difference Result 87436 states and 118898 transitions. [2022-07-12 15:15:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:15:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 222 [2022-07-12 15:15:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:32,659 INFO L225 Difference]: With dead ends: 87436 [2022-07-12 15:15:32,659 INFO L226 Difference]: Without dead ends: 42796 [2022-07-12 15:15:32,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:15:32,765 INFO L413 NwaCegarLoop]: 4693 mSDtfsCounter, 1971 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:32,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 7793 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:15:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42796 states. [2022-07-12 15:15:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42796 to 42753. [2022-07-12 15:15:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42753 states, 29274 states have (on average 1.2312973970075836) internal successors, (36045), 29778 states have internal predecessors, (36045), 10755 states have call successors, (10755), 2792 states have call predecessors, (10755), 2721 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:15:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42753 states to 42753 states and 57708 transitions. [2022-07-12 15:15:34,276 INFO L78 Accepts]: Start accepts. Automaton has 42753 states and 57708 transitions. Word has length 222 [2022-07-12 15:15:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:34,276 INFO L495 AbstractCegarLoop]: Abstraction has 42753 states and 57708 transitions. [2022-07-12 15:15:34,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:15:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 42753 states and 57708 transitions. [2022-07-12 15:15:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 15:15:34,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:34,283 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:34,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:34,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:34,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2022-07-12 15:15:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash -648544374, now seen corresponding path program 1 times [2022-07-12 15:15:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:34,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733870813] [2022-07-12 15:15:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:34,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:34,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:34,498 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:34,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 15:15:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:35,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:35,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-12 15:15:36,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:15:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-12 15:15:37,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:37,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733870813] [2022-07-12 15:15:37,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733870813] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:15:37,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:15:37,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:15:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700508064] [2022-07-12 15:15:37,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:37,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:37,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:37,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:37,241 INFO L87 Difference]: Start difference. First operand 42753 states and 57708 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:15:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:38,195 INFO L93 Difference]: Finished difference Result 42759 states and 57713 transitions. [2022-07-12 15:15:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:15:38,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2022-07-12 15:15:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:38,328 INFO L225 Difference]: With dead ends: 42759 [2022-07-12 15:15:38,329 INFO L226 Difference]: Without dead ends: 42757 [2022-07-12 15:15:38,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:15:38,350 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:38,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42757 states. [2022-07-12 15:15:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42757 to 42757. [2022-07-12 15:15:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42757 states, 29277 states have (on average 1.2312736960754176) internal successors, (36048), 29781 states have internal predecessors, (36048), 10755 states have call successors, (10755), 2793 states have call predecessors, (10755), 2722 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:15:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 57711 transitions. [2022-07-12 15:15:39,756 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 57711 transitions. Word has length 229 [2022-07-12 15:15:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:39,756 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 57711 transitions. [2022-07-12 15:15:39,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:15:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 57711 transitions. [2022-07-12 15:15:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-12 15:15:39,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:39,759 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:39,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:39,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:39,961 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2022-07-12 15:15:39,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1745080822, now seen corresponding path program 1 times [2022-07-12 15:15:39,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:39,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353029338] [2022-07-12 15:15:39,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:39,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:39,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:39,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:39,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 15:15:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:41,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-12 15:15:42,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:15:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-12 15:15:42,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:42,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353029338] [2022-07-12 15:15:42,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353029338] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:15:42,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:15:42,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:15:42,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651571631] [2022-07-12 15:15:42,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:42,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:42,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:42,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:42,899 INFO L87 Difference]: Start difference. First operand 42757 states and 57711 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:15:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:43,951 INFO L93 Difference]: Finished difference Result 42763 states and 57716 transitions. [2022-07-12 15:15:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:15:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2022-07-12 15:15:43,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:44,078 INFO L225 Difference]: With dead ends: 42763 [2022-07-12 15:15:44,078 INFO L226 Difference]: Without dead ends: 42761 [2022-07-12 15:15:44,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:15:44,102 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:44,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42761 states. [2022-07-12 15:15:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42761 to 42761. [2022-07-12 15:15:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42761 states, 29280 states have (on average 1.23125) internal successors, (36051), 29784 states have internal predecessors, (36051), 10755 states have call successors, (10755), 2794 states have call predecessors, (10755), 2723 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:15:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42761 states to 42761 states and 57714 transitions. [2022-07-12 15:15:45,553 INFO L78 Accepts]: Start accepts. Automaton has 42761 states and 57714 transitions. Word has length 234 [2022-07-12 15:15:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:45,554 INFO L495 AbstractCegarLoop]: Abstraction has 42761 states and 57714 transitions. [2022-07-12 15:15:45,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:15:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 42761 states and 57714 transitions. [2022-07-12 15:15:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-12 15:15:45,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:45,557 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:45,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-12 15:15:45,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:45,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-07-12 15:15:45,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:45,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1582545610, now seen corresponding path program 1 times [2022-07-12 15:15:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488257438] [2022-07-12 15:15:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:45,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:45,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:45,779 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:45,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 15:15:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:47,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:48,150 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-12 15:15:48,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:15:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-12 15:15:48,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:48,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488257438] [2022-07-12 15:15:48,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488257438] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:15:48,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:15:48,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:15:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462796370] [2022-07-12 15:15:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:48,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:48,643 INFO L87 Difference]: Start difference. First operand 42761 states and 57714 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:15:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:49,629 INFO L93 Difference]: Finished difference Result 42767 states and 57719 transitions. [2022-07-12 15:15:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:15:49,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2022-07-12 15:15:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:49,766 INFO L225 Difference]: With dead ends: 42767 [2022-07-12 15:15:49,766 INFO L226 Difference]: Without dead ends: 42765 [2022-07-12 15:15:49,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:15:49,795 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:49,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42765 states. [2022-07-12 15:15:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42765 to 42765. [2022-07-12 15:15:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42765 states, 29283 states have (on average 1.231226308779838) internal successors, (36054), 29787 states have internal predecessors, (36054), 10755 states have call successors, (10755), 2795 states have call predecessors, (10755), 2724 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:15:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 57717 transitions. [2022-07-12 15:15:51,212 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 57717 transitions. Word has length 239 [2022-07-12 15:15:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:51,213 INFO L495 AbstractCegarLoop]: Abstraction has 42765 states and 57717 transitions. [2022-07-12 15:15:51,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:15:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 57717 transitions. [2022-07-12 15:15:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-12 15:15:51,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:51,215 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:51,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:51,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:51,439 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-07-12 15:15:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1335184950, now seen corresponding path program 1 times [2022-07-12 15:15:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:51,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252875696] [2022-07-12 15:15:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:51,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:51,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:51,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:51,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 15:15:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:52,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:52,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-12 15:15:53,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:15:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-12 15:15:54,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:15:54,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252875696] [2022-07-12 15:15:54,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252875696] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:15:54,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:15:54,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:15:54,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962009358] [2022-07-12 15:15:54,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:15:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:15:54,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:15:54,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:54,333 INFO L87 Difference]: Start difference. First operand 42765 states and 57717 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:15:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:55,488 INFO L93 Difference]: Finished difference Result 42771 states and 57722 transitions. [2022-07-12 15:15:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:15:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2022-07-12 15:15:55,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:55,661 INFO L225 Difference]: With dead ends: 42771 [2022-07-12 15:15:55,661 INFO L226 Difference]: Without dead ends: 42769 [2022-07-12 15:15:55,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:15:55,693 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:55,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:15:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2022-07-12 15:15:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 42769. [2022-07-12 15:15:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42769 states, 29286 states have (on average 1.2312026224134398) internal successors, (36057), 29790 states have internal predecessors, (36057), 10755 states have call successors, (10755), 2796 states have call predecessors, (10755), 2725 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:15:57,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42769 states to 42769 states and 57720 transitions. [2022-07-12 15:15:57,299 INFO L78 Accepts]: Start accepts. Automaton has 42769 states and 57720 transitions. Word has length 244 [2022-07-12 15:15:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:57,300 INFO L495 AbstractCegarLoop]: Abstraction has 42769 states and 57720 transitions. [2022-07-12 15:15:57,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:15:57,300 INFO L276 IsEmpty]: Start isEmpty. Operand 42769 states and 57720 transitions. [2022-07-12 15:15:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-12 15:15:57,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:57,303 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:57,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 15:15:57,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:15:57,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-07-12 15:15:57,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1883236854, now seen corresponding path program 1 times [2022-07-12 15:15:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:15:57,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719436996] [2022-07-12 15:15:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:57,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:15:57,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:15:57,530 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:15:57,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 15:15:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:58,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:15:58,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:15:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-12 15:15:59,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:16:00,384 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-12 15:16:00,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:16:00,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719436996] [2022-07-12 15:16:00,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719436996] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:16:00,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:16:00,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:16:00,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667901404] [2022-07-12 15:16:00,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:00,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:16:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:16:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:16:00,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:16:00,386 INFO L87 Difference]: Start difference. First operand 42769 states and 57720 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 15:16:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:01,589 INFO L93 Difference]: Finished difference Result 42775 states and 57725 transitions. [2022-07-12 15:16:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:16:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 249 [2022-07-12 15:16:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:01,705 INFO L225 Difference]: With dead ends: 42775 [2022-07-12 15:16:01,706 INFO L226 Difference]: Without dead ends: 42773 [2022-07-12 15:16:01,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:01,725 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:01,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3100 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:16:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42773 states. [2022-07-12 15:16:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42773 to 42773. [2022-07-12 15:16:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42773 states, 29289 states have (on average 1.2311789408993137) internal successors, (36060), 29793 states have internal predecessors, (36060), 10755 states have call successors, (10755), 2797 states have call predecessors, (10755), 2726 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-12 15:16:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42773 states to 42773 states and 57723 transitions. [2022-07-12 15:16:03,052 INFO L78 Accepts]: Start accepts. Automaton has 42773 states and 57723 transitions. Word has length 249 [2022-07-12 15:16:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:03,053 INFO L495 AbstractCegarLoop]: Abstraction has 42773 states and 57723 transitions. [2022-07-12 15:16:03,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 15:16:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand 42773 states and 57723 transitions. [2022-07-12 15:16:03,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-12 15:16:03,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:03,056 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 6, 6, 6, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:03,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 15:16:03,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:16:03,282 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-07-12 15:16:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:03,282 INFO L85 PathProgramCache]: Analyzing trace with hash 789674925, now seen corresponding path program 1 times [2022-07-12 15:16:03,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:16:03,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044812192] [2022-07-12 15:16:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:03,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:16:03,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:16:03,284 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:16:03,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 15:16:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 15:16:04,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:16:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-07-12 15:16:05,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:16:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-07-12 15:16:06,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:16:06,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044812192] [2022-07-12 15:16:06,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044812192] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:16:06,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 15:16:06,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-12 15:16:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670590144] [2022-07-12 15:16:06,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 15:16:06,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 15:16:06,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:16:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 15:16:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-12 15:16:06,327 INFO L87 Difference]: Start difference. First operand 42773 states and 57723 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-12 15:16:25,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:25,387 INFO L93 Difference]: Finished difference Result 85632 states and 115486 transitions. [2022-07-12 15:16:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-12 15:16:25,389 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) Word has length 272 [2022-07-12 15:16:25,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:25,722 INFO L225 Difference]: With dead ends: 85632 [2022-07-12 15:16:25,722 INFO L226 Difference]: Without dead ends: 85288 [2022-07-12 15:16:25,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-12 15:16:25,774 INFO L413 NwaCegarLoop]: 5886 mSDtfsCounter, 8533 mSDsluCounter, 67239 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8575 SdHoareTripleChecker+Valid, 73125 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:25,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 73125 Invalid, 6052 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2110 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-07-12 15:16:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85288 states. [2022-07-12 15:16:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85288 to 85011. [2022-07-12 15:16:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85011 states, 58192 states have (on average 1.231664146274402) internal successors, (71673), 59206 states have internal predecessors, (71673), 21391 states have call successors, (21391), 5569 states have call predecessors, (21391), 5425 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-12 15:16:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85011 states to 85011 states and 114760 transitions. [2022-07-12 15:16:29,346 INFO L78 Accepts]: Start accepts. Automaton has 85011 states and 114760 transitions. Word has length 272 [2022-07-12 15:16:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:29,347 INFO L495 AbstractCegarLoop]: Abstraction has 85011 states and 114760 transitions. [2022-07-12 15:16:29,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-12 15:16:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 85011 states and 114760 transitions. [2022-07-12 15:16:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-12 15:16:29,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:29,350 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:29,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 15:16:29,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:16:29,563 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-07-12 15:16:29,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash -669373834, now seen corresponding path program 1 times [2022-07-12 15:16:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:16:29,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752827623] [2022-07-12 15:16:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:29,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:16:29,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:16:29,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:16:29,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 15:16:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:16:30,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:16:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-12 15:16:32,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:16:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-12 15:16:32,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:16:32,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752827623] [2022-07-12 15:16:32,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752827623] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:16:32,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:16:32,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:16:32,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797768948] [2022-07-12 15:16:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:16:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:16:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:16:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:16:32,619 INFO L87 Difference]: Start difference. First operand 85011 states and 114760 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 15:16:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:35,126 INFO L93 Difference]: Finished difference Result 85017 states and 114765 transitions. [2022-07-12 15:16:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:16:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2022-07-12 15:16:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:35,474 INFO L225 Difference]: With dead ends: 85017 [2022-07-12 15:16:35,474 INFO L226 Difference]: Without dead ends: 85015 [2022-07-12 15:16:35,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:35,514 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:35,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:16:35,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85015 states. [2022-07-12 15:16:38,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85015 to 85015. [2022-07-12 15:16:38,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85015 states, 58195 states have (on average 1.231652203797577) internal successors, (71676), 59209 states have internal predecessors, (71676), 21391 states have call successors, (21391), 5570 states have call predecessors, (21391), 5426 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-12 15:16:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85015 states to 85015 states and 114763 transitions. [2022-07-12 15:16:39,219 INFO L78 Accepts]: Start accepts. Automaton has 85015 states and 114763 transitions. Word has length 254 [2022-07-12 15:16:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:39,220 INFO L495 AbstractCegarLoop]: Abstraction has 85015 states and 114763 transitions. [2022-07-12 15:16:39,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 15:16:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 85015 states and 114763 transitions. [2022-07-12 15:16:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-12 15:16:39,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:39,224 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:39,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 15:16:39,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:16:39,451 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-07-12 15:16:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1856695990, now seen corresponding path program 1 times [2022-07-12 15:16:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:16:39,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208485618] [2022-07-12 15:16:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:39,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:16:39,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:16:39,454 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:16:39,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 15:16:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:40,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:16:40,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:16:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-12 15:16:42,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:16:42,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-12 15:16:42,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:16:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208485618] [2022-07-12 15:16:42,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208485618] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:16:42,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:16:42,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:16:42,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807880856] [2022-07-12 15:16:42,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:42,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:16:42,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:16:42,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:16:42,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:16:42,532 INFO L87 Difference]: Start difference. First operand 85015 states and 114763 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-12 15:16:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:45,373 INFO L93 Difference]: Finished difference Result 85021 states and 114768 transitions. [2022-07-12 15:16:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:16:45,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2022-07-12 15:16:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:45,785 INFO L225 Difference]: With dead ends: 85021 [2022-07-12 15:16:45,786 INFO L226 Difference]: Without dead ends: 85019 [2022-07-12 15:16:45,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:45,838 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:45,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3098 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:16:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85019 states. [2022-07-12 15:16:49,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85019 to 85019. [2022-07-12 15:16:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85019 states, 58198 states have (on average 1.2316402625519778) internal successors, (71679), 59212 states have internal predecessors, (71679), 21391 states have call successors, (21391), 5571 states have call predecessors, (21391), 5427 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-12 15:16:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85019 states to 85019 states and 114766 transitions. [2022-07-12 15:16:49,961 INFO L78 Accepts]: Start accepts. Automaton has 85019 states and 114766 transitions. Word has length 259 [2022-07-12 15:16:49,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:49,963 INFO L495 AbstractCegarLoop]: Abstraction has 85019 states and 114766 transitions. [2022-07-12 15:16:49,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-12 15:16:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 85019 states and 114766 transitions. [2022-07-12 15:16:49,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-12 15:16:49,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:49,993 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 7, 7, 7, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:50,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 15:16:50,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:16:50,194 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-07-12 15:16:50,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:50,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1072865111, now seen corresponding path program 1 times [2022-07-12 15:16:50,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:16:50,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149646481] [2022-07-12 15:16:50,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:50,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:16:50,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:16:50,198 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:16:50,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 15:16:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:51,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:16:51,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:16:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-12 15:16:51,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:16:51,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:16:51,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149646481] [2022-07-12 15:16:51,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149646481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:51,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:51,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:16:51,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202021364] [2022-07-12 15:16:51,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:51,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:16:51,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:16:51,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:16:51,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:16:51,892 INFO L87 Difference]: Start difference. First operand 85019 states and 114766 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35)