./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 eb692b52 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-?-eb692b5 [2022-07-20 02:16:45,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:16:45,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:16:45,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:16:45,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:16:45,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:16:45,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:16:45,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:16:45,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:16:45,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:16:45,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:16:45,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:16:45,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:16:45,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:16:45,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:16:45,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:16:45,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:16:45,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:16:45,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:16:45,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:16:45,488 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:16:45,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:16:45,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:16:45,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:16:45,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:16:45,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:16:45,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:16:45,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:16:45,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:16:45,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:16:45,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:16:45,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:16:45,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:16:45,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:16:45,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:16:45,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:16:45,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:16:45,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:16:45,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:16:45,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:16:45,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:16:45,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:16:45,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:16:45,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:16:45,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:16:45,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:16:45,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:16:45,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:16:45,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:16:45,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:16:45,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:16:45,540 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:16:45,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:16:45,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:16:45,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:16:45,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:16:45,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:16:45,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:16:45,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:16:45,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:16:45,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:16:45,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:16:45,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:16:45,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:16:45,544 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:16:45,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:16:45,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:16:45,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-20 02:16:45,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:16:45,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:16:45,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:16:45,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:16:45,773 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:16:45,774 INFO L432 ainManager$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 [2022-07-20 02:16:45,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91187e012/c6b27cc6ec354699aabeb1c27f7a7af8/FLAG6743eb5c4 [2022-07-20 02:16:46,538 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:16:46,539 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 [2022-07-20 02:16:46,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91187e012/c6b27cc6ec354699aabeb1c27f7a7af8/FLAG6743eb5c4 [2022-07-20 02:16:47,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91187e012/c6b27cc6ec354699aabeb1c27f7a7af8 [2022-07-20 02:16:47,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:16:47,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:16:47,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:16:47,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:16:47,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:16:47,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:16:47" (1/1) ... [2022-07-20 02:16:47,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c3f173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:47, skipping insertion in model container [2022-07-20 02:16:47,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:16:47" (1/1) ... [2022-07-20 02:16:47,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:16:47,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:16:49,715 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] [2022-07-20 02:16:49,717 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] [2022-07-20 02:16:49,718 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] [2022-07-20 02:16:49,719 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] [2022-07-20 02:16:49,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:16:49,804 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:16:49,964 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) [2022-07-20 02:16:49,969 INFO L158 Benchmark]: Toolchain (without parser) took 2886.91ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 84.8MB in the beginning and 86.5MB in the end (delta: -1.7MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-07-20 02:16:49,969 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:16:49,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2884.53ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 84.8MB in the beginning and 86.5MB in the end (delta: -1.7MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-07-20 02:16:49,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2884.53ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 84.8MB in the beginning and 86.5MB in the end (delta: -1.7MB). Peak memory consumption was 72.7MB. 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-?-eb692b5 [2022-07-20 02:16:51,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:16:51,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:16:51,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:16:51,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:16:51,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:16:51,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:16:51,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:16:51,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:16:51,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:16:51,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:16:51,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:16:51,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:16:51,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:16:51,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:16:51,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:16:51,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:16:51,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:16:51,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:16:51,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:16:51,555 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:16:51,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:16:51,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:16:51,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:16:51,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:16:51,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:16:51,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:16:51,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:16:51,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:16:51,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:16:51,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:16:51,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:16:51,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:16:51,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:16:51,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:16:51,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:16:51,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:16:51,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:16:51,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:16:51,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:16:51,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:16:51,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:16:51,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:16:51,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:16:51,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:16:51,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:16:51,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:16:51,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:16:51,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:16:51,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:16:51,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:16:51,591 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:16:51,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:16:51,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:16:51,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:16:51,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:16:51,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:16:51,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:16:51,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:16:51,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:16:51,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:16:51,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:16:51,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:16:51,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:16:51,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:16:51,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:16:51,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:16:51,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:16:51,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:16:51,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:16:51,594 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:16:51,595 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:16:51,595 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:16:51,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:16:51,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:16:51,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:16:51,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-20 02:16:51,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:16:51,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:16:51,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:16:51,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:16:51,888 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:16:51,889 INFO L432 ainManager$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 [2022-07-20 02:16:51,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b956c90/973a10668c30476db79c83acf25994c5/FLAGe075edd18 [2022-07-20 02:16:52,659 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:16:52,660 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 [2022-07-20 02:16:52,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b956c90/973a10668c30476db79c83acf25994c5/FLAGe075edd18 [2022-07-20 02:16:52,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b956c90/973a10668c30476db79c83acf25994c5 [2022-07-20 02:16:52,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:16:52,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:16:52,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:16:52,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:16:52,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:16:52,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:16:52" (1/1) ... [2022-07-20 02:16:52,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60802eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:52, skipping insertion in model container [2022-07-20 02:16:52,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:16:52" (1/1) ... [2022-07-20 02:16:52,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:16:53,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:16:55,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-20 02:16:55,569 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[396296,396309] [2022-07-20 02:16:55,569 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] [2022-07-20 02:16:55,570 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] [2022-07-20 02:16:55,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:16:55,623 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:16:55,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:16:55,896 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] [2022-07-20 02:16:55,897 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] [2022-07-20 02:16:55,897 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] [2022-07-20 02:16:55,898 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] [2022-07-20 02:16:55,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:16:55,929 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:16:56,184 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] [2022-07-20 02:16:56,184 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] [2022-07-20 02:16:56,185 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] [2022-07-20 02:16:56,185 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] [2022-07-20 02:16:56,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:16:56,385 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:16:56,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56 WrapperNode [2022-07-20 02:16:56,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:16:56,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:16:56,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:16:56,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:16:56,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,680 INFO L137 Inliner]: procedures = 551, calls = 2748, calls flagged for inlining = 264, calls inlined = 238, statements flattened = 6118 [2022-07-20 02:16:56,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:16:56,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:16:56,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:16:56,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:16:56,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:16:56,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:16:56,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:16:56,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:16:56,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (1/1) ... [2022-07-20 02:16:56,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:16:56,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:16:56,988 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) [2022-07-20 02:16:57,005 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 [2022-07-20 02:16:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-20 02:16:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-20 02:16:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2022-07-20 02:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2022-07-20 02:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 02:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 02:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2022-07-20 02:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2022-07-20 02:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 02:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 02:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-20 02:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-20 02:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:16:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-20 02:16:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-20 02:16:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 02:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 02:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 02:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 02:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-20 02:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-20 02:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-20 02:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-20 02:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2022-07-20 02:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2022-07-20 02:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 02:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 02:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 02:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 02:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2022-07-20 02:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2022-07-20 02:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2022-07-20 02:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2022-07-20 02:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2022-07-20 02:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2022-07-20 02:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 02:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 02:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 02:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 02:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 02:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 02:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 02:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 02:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-20 02:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-20 02:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 02:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-20 02:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-20 02:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2022-07-20 02:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2022-07-20 02:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-20 02:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-20 02:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2022-07-20 02:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2022-07-20 02:16:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 02:16:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 02:16:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2022-07-20 02:16:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2022-07-20 02:16:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:16:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:16:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 02:16:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 02:16:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2022-07-20 02:16:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2022-07-20 02:16:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2022-07-20 02:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2022-07-20 02:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2022-07-20 02:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2022-07-20 02:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:16:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2022-07-20 02:16:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2022-07-20 02:16:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:16:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:16:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-20 02:16:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-20 02:16:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 02:16:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 02:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-20 02:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-20 02:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 02:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 02:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2022-07-20 02:16:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2022-07-20 02:16:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2022-07-20 02:16:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2022-07-20 02:16:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:16:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:16:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:16:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 02:16:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 02:16:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:16:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:16:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-20 02:16:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-20 02:16:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:16:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-20 02:16:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-20 02:16:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:16:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:16:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:16:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:16:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2022-07-20 02:16:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2022-07-20 02:16:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2022-07-20 02:16:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2022-07-20 02:16:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-20 02:16:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-20 02:16:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2022-07-20 02:16:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2022-07-20 02:16:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2022-07-20 02:16:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2022-07-20 02:16:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:16:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:16:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 02:16:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 02:16:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2022-07-20 02:16:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2022-07-20 02:16:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:16:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:16:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:16:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:16:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2022-07-20 02:16:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2022-07-20 02:16:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-20 02:16:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-20 02:16:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 02:16:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 02:16:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:16:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:16:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:16:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2022-07-20 02:16:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2022-07-20 02:16:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:16:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 02:16:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:16:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:16:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:16:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:16:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:16:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 02:16:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 02:16:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 02:16:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 02:16:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 02:16:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2022-07-20 02:16:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2022-07-20 02:16:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2022-07-20 02:16:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2022-07-20 02:16:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-20 02:16:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-20 02:16:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 02:16:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 02:16:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:16:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:16:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2022-07-20 02:16:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2022-07-20 02:16:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 02:16:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 02:16:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2022-07-20 02:16:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2022-07-20 02:16:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-20 02:16:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-20 02:16:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:16:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 02:16:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 02:16:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-20 02:16:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-20 02:16:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 02:16:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 02:16:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:16:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-20 02:16:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-20 02:16:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2022-07-20 02:16:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:16:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2022-07-20 02:16:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2022-07-20 02:16:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:16:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:16:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:16:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:16:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 02:16:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 02:16:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2022-07-20 02:16:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2022-07-20 02:16:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:16:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:16:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-20 02:16:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-20 02:16:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-07-20 02:16:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-07-20 02:16:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 02:16:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 02:16:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:16:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:16:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2022-07-20 02:16:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2022-07-20 02:16:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2022-07-20 02:16:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2022-07-20 02:16:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 02:16:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 02:16:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2022-07-20 02:16:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2022-07-20 02:16:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-20 02:16:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-20 02:16:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-07-20 02:16:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-07-20 02:16:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2022-07-20 02:16:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2022-07-20 02:16:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-20 02:16:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-20 02:16:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-20 02:16:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-20 02:16:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2022-07-20 02:16:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2022-07-20 02:16:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:16:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:16:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2022-07-20 02:16:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2022-07-20 02:16:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 02:16:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 02:16:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-20 02:16:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-20 02:16:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 02:16:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 02:16:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 02:16:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 02:16:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2022-07-20 02:16:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2022-07-20 02:16:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:16:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:16:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-20 02:16:57,893 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:16:57,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:16:58,058 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:17:35,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:17:38,193 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:17:38,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:17:38,211 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-20 02:17:38,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:17:38 BoogieIcfgContainer [2022-07-20 02:17:38,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:17:38,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:17:38,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:17:38,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:17:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:16:52" (1/3) ... [2022-07-20 02:17:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6e7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:17:38, skipping insertion in model container [2022-07-20 02:17:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:16:56" (2/3) ... [2022-07-20 02:17:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6e7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:17:38, skipping insertion in model container [2022-07-20 02:17:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:17:38" (3/3) ... [2022-07-20 02:17:38,219 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-20 02:17:38,229 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:17:38,229 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:17:38,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:17:38,296 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@4f272582, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@524f0ea4 [2022-07-20 02:17:38,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:17:38,304 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) [2022-07-20 02:17:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-20 02:17:38,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:38,317 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] [2022-07-20 02:17:38,318 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)] === [2022-07-20 02:17:38,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2022-07-20 02:17:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:38,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288902645] [2022-07-20 02:17:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:38,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:38,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:38,334 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) [2022-07-20 02:17:38,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:17:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:39,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:17:39,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-20 02:17:39,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:39,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:39,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288902645] [2022-07-20 02:17:39,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288902645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:39,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:39,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:17:39,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727532720] [2022-07-20 02:17:39,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:39,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:17:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:40,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:17:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:17:40,035 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) [2022-07-20 02:17:40,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:17:40,530 INFO L93 Difference]: Finished difference Result 6818 states and 9545 transitions. [2022-07-20 02:17:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:17:40,533 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 [2022-07-20 02:17:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:17:40,642 INFO L225 Difference]: With dead ends: 6818 [2022-07-20 02:17:40,642 INFO L226 Difference]: Without dead ends: 4502 [2022-07-20 02:17:40,661 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 [2022-07-20 02:17:40,670 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:17:40,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 6910 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:17:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-07-20 02:17:40,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4498. [2022-07-20 02:17:40,951 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) [2022-07-20 02:17:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6188 transitions. [2022-07-20 02:17:40,984 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6188 transitions. Word has length 167 [2022-07-20 02:17:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:17:40,988 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 6188 transitions. [2022-07-20 02:17:40,988 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) [2022-07-20 02:17:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6188 transitions. [2022-07-20 02:17:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-20 02:17:40,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:40,997 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] [2022-07-20 02:17:41,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 02:17:41,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:17:41,214 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)] === [2022-07-20 02:17:41,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:41,215 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2022-07-20 02:17:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:41,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259672023] [2022-07-20 02:17:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:41,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:41,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:41,220 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) [2022-07-20 02:17:41,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:17:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:42,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:17:42,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:42,870 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-20 02:17:42,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:42,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259672023] [2022-07-20 02:17:42,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259672023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:42,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:17:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495482674] [2022-07-20 02:17:42,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:42,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:17:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:17:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:17:42,874 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) [2022-07-20 02:17:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:17:43,257 INFO L93 Difference]: Finished difference Result 13216 states and 18204 transitions. [2022-07-20 02:17:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:17:43,258 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 [2022-07-20 02:17:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:17:43,312 INFO L225 Difference]: With dead ends: 13216 [2022-07-20 02:17:43,312 INFO L226 Difference]: Without dead ends: 8749 [2022-07-20 02:17:43,333 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 [2022-07-20 02:17:43,334 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 [2022-07-20 02:17:43,335 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] [2022-07-20 02:17:43,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8749 states. [2022-07-20 02:17:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8749 to 8711. [2022-07-20 02:17:43,685 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) [2022-07-20 02:17:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12007 transitions. [2022-07-20 02:17:43,731 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12007 transitions. Word has length 171 [2022-07-20 02:17:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:17:43,732 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12007 transitions. [2022-07-20 02:17:43,733 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) [2022-07-20 02:17:43,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12007 transitions. [2022-07-20 02:17:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-20 02:17:43,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:43,736 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] [2022-07-20 02:17:43,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:17:43,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:17:43,951 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)] === [2022-07-20 02:17:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2022-07-20 02:17:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:43,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591060963] [2022-07-20 02:17:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:43,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:43,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:43,964 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) [2022-07-20 02:17:43,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:17:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:45,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:17:45,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-20 02:17:45,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:45,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:45,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591060963] [2022-07-20 02:17:45,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591060963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:45,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:45,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:17:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081591652] [2022-07-20 02:17:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:45,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:17:45,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:17:45,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:17:45,499 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) [2022-07-20 02:17:46,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:17:46,200 INFO L93 Difference]: Finished difference Result 25907 states and 35775 transitions. [2022-07-20 02:17:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:17:46,201 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 [2022-07-20 02:17:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:17:46,320 INFO L225 Difference]: With dead ends: 25907 [2022-07-20 02:17:46,320 INFO L226 Difference]: Without dead ends: 17227 [2022-07-20 02:17:46,358 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 [2022-07-20 02:17:46,360 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 3084 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:17:46,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6895 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:17:46,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17227 states. [2022-07-20 02:17:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17227 to 17185. [2022-07-20 02:17:47,038 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) [2022-07-20 02:17:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 23743 transitions. [2022-07-20 02:17:47,111 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 23743 transitions. Word has length 184 [2022-07-20 02:17:47,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:17:47,113 INFO L495 AbstractCegarLoop]: Abstraction has 17185 states and 23743 transitions. [2022-07-20 02:17:47,113 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) [2022-07-20 02:17:47,113 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 23743 transitions. [2022-07-20 02:17:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 02:17:47,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:47,116 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] [2022-07-20 02:17:47,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:17:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:17:47,327 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)] === [2022-07-20 02:17:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2022-07-20 02:17:47,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:47,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255279876] [2022-07-20 02:17:47,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:47,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:47,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:47,334 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) [2022-07-20 02:17:47,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:17:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:48,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:17:48,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-20 02:17:48,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:48,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:48,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255279876] [2022-07-20 02:17:48,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255279876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:48,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:48,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:17:48,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378592556] [2022-07-20 02:17:48,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:48,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:17:48,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:48,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:17:48,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:17:48,828 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) [2022-07-20 02:17:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:17:50,040 INFO L93 Difference]: Finished difference Result 46595 states and 64065 transitions. [2022-07-20 02:17:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:17:50,040 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 [2022-07-20 02:17:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:17:50,370 INFO L225 Difference]: With dead ends: 46595 [2022-07-20 02:17:50,370 INFO L226 Difference]: Without dead ends: 29441 [2022-07-20 02:17:50,432 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 [2022-07-20 02:17:50,434 INFO L413 NwaCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:17:50,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 02:17:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29441 states. [2022-07-20 02:17:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29441 to 29397. [2022-07-20 02:17:51,394 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) [2022-07-20 02:17:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29397 states to 29397 states and 40271 transitions. [2022-07-20 02:17:51,640 INFO L78 Accepts]: Start accepts. Automaton has 29397 states and 40271 transitions. Word has length 189 [2022-07-20 02:17:51,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:17:51,643 INFO L495 AbstractCegarLoop]: Abstraction has 29397 states and 40271 transitions. [2022-07-20 02:17:51,643 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) [2022-07-20 02:17:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand 29397 states and 40271 transitions. [2022-07-20 02:17:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-20 02:17:51,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:51,647 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] [2022-07-20 02:17:51,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 02:17:51,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:17:51,876 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)] === [2022-07-20 02:17:51,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash -35456696, now seen corresponding path program 1 times [2022-07-20 02:17:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:51,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929777080] [2022-07-20 02:17:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:51,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:51,892 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) [2022-07-20 02:17:51,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:17:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:53,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:17:53,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-07-20 02:17:53,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:53,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:53,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929777080] [2022-07-20 02:17:53,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929777080] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:53,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:53,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:17:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972508598] [2022-07-20 02:17:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:53,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:17:53,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:17:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:17:53,456 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) [2022-07-20 02:17:54,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:17:54,286 INFO L93 Difference]: Finished difference Result 58876 states and 80614 transitions. [2022-07-20 02:17:54,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:17:54,286 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 [2022-07-20 02:17:54,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:17:54,640 INFO L225 Difference]: With dead ends: 58876 [2022-07-20 02:17:54,641 INFO L226 Difference]: Without dead ends: 43956 [2022-07-20 02:17:54,692 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 [2022-07-20 02:17:54,693 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, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:17:54,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 9356 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:17:54,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43956 states. [2022-07-20 02:17:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43956 to 43931. [2022-07-20 02:17:56,168 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) [2022-07-20 02:17:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43931 states to 43931 states and 60166 transitions. [2022-07-20 02:17:56,514 INFO L78 Accepts]: Start accepts. Automaton has 43931 states and 60166 transitions. Word has length 219 [2022-07-20 02:17:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:17:56,515 INFO L495 AbstractCegarLoop]: Abstraction has 43931 states and 60166 transitions. [2022-07-20 02:17:56,516 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) [2022-07-20 02:17:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 43931 states and 60166 transitions. [2022-07-20 02:17:56,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-20 02:17:56,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:17:56,519 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] [2022-07-20 02:17:56,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 02:17:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:17:56,735 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)] === [2022-07-20 02:17:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:17:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2022-07-20 02:17:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:17:56,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388054803] [2022-07-20 02:17:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:17:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:17:56,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:17:56,739 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) [2022-07-20 02:17:56,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:17:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:17:58,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:17:58,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:17:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-20 02:17:59,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:17:59,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:17:59,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388054803] [2022-07-20 02:17:59,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388054803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:17:59,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:17:59,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:17:59,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823154982] [2022-07-20 02:17:59,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:17:59,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:17:59,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:17:59,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:17:59,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:17:59,796 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) [2022-07-20 02:18:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:00,906 INFO L93 Difference]: Finished difference Result 44671 states and 60910 transitions. [2022-07-20 02:18:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:18:00,907 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 [2022-07-20 02:18:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:01,151 INFO L225 Difference]: With dead ends: 44671 [2022-07-20 02:18:01,151 INFO L226 Difference]: Without dead ends: 44669 [2022-07-20 02:18:01,174 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 [2022-07-20 02:18:01,177 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 [2022-07-20 02:18:01,177 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] [2022-07-20 02:18:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44669 states. [2022-07-20 02:18:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44669 to 44667. [2022-07-20 02:18:02,611 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) [2022-07-20 02:18:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44667 states to 44667 states and 60907 transitions. [2022-07-20 02:18:02,765 INFO L78 Accepts]: Start accepts. Automaton has 44667 states and 60907 transitions. Word has length 219 [2022-07-20 02:18:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:02,765 INFO L495 AbstractCegarLoop]: Abstraction has 44667 states and 60907 transitions. [2022-07-20 02:18:02,765 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) [2022-07-20 02:18:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 44667 states and 60907 transitions. [2022-07-20 02:18:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-20 02:18:02,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:02,769 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] [2022-07-20 02:18:02,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:02,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:02,987 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)] === [2022-07-20 02:18:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2022-07-20 02:18:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:02,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675589712] [2022-07-20 02:18:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:02,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:02,991 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) [2022-07-20 02:18:02,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 02:18:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:04,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:04,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-20 02:18:06,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-20 02:18:06,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:06,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675589712] [2022-07-20 02:18:06,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675589712] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:06,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:06,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942211055] [2022-07-20 02:18:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:06,756 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) [2022-07-20 02:18:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:07,900 INFO L93 Difference]: Finished difference Result 44673 states and 60912 transitions. [2022-07-20 02:18:07,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:07,901 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 [2022-07-20 02:18:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:08,086 INFO L225 Difference]: With dead ends: 44673 [2022-07-20 02:18:08,086 INFO L226 Difference]: Without dead ends: 44671 [2022-07-20 02:18:08,123 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 [2022-07-20 02:18:08,124 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 [2022-07-20 02:18:08,124 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] [2022-07-20 02:18:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44671 states. [2022-07-20 02:18:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44671 to 44671. [2022-07-20 02:18:09,629 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) [2022-07-20 02:18:09,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44671 states to 44671 states and 60910 transitions. [2022-07-20 02:18:09,954 INFO L78 Accepts]: Start accepts. Automaton has 44671 states and 60910 transitions. Word has length 224 [2022-07-20 02:18:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:09,955 INFO L495 AbstractCegarLoop]: Abstraction has 44671 states and 60910 transitions. [2022-07-20 02:18:09,955 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) [2022-07-20 02:18:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 44671 states and 60910 transitions. [2022-07-20 02:18:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-20 02:18:09,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:09,960 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] [2022-07-20 02:18:09,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:10,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:10,179 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)] === [2022-07-20 02:18:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2022-07-20 02:18:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:10,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967009784] [2022-07-20 02:18:10,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:10,184 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) [2022-07-20 02:18:10,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 02:18:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:11,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:18:11,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:11,716 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-20 02:18:11,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:18:11,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967009784] [2022-07-20 02:18:11,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967009784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:18:11,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:18:11,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:18:11,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045586356] [2022-07-20 02:18:11,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:11,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:18:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:18:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:18:11,718 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) [2022-07-20 02:18:13,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:13,191 INFO L93 Difference]: Finished difference Result 87436 states and 118898 transitions. [2022-07-20 02:18:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:18:13,191 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 [2022-07-20 02:18:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:13,360 INFO L225 Difference]: With dead ends: 87436 [2022-07-20 02:18:13,360 INFO L226 Difference]: Without dead ends: 42796 [2022-07-20 02:18:13,478 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 [2022-07-20 02:18:13,479 INFO L413 NwaCegarLoop]: 4693 mSDtfsCounter, 1971 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:18:13,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 7793 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 02:18:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42796 states. [2022-07-20 02:18:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42796 to 42753. [2022-07-20 02:18:14,786 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) [2022-07-20 02:18:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42753 states to 42753 states and 57708 transitions. [2022-07-20 02:18:15,064 INFO L78 Accepts]: Start accepts. Automaton has 42753 states and 57708 transitions. Word has length 222 [2022-07-20 02:18:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:15,065 INFO L495 AbstractCegarLoop]: Abstraction has 42753 states and 57708 transitions. [2022-07-20 02:18:15,065 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) [2022-07-20 02:18:15,065 INFO L276 IsEmpty]: Start isEmpty. Operand 42753 states and 57708 transitions. [2022-07-20 02:18:15,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-20 02:18:15,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:15,067 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] [2022-07-20 02:18:15,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:15,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:15,271 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)] === [2022-07-20 02:18:15,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:15,271 INFO L85 PathProgramCache]: Analyzing trace with hash -648544374, now seen corresponding path program 1 times [2022-07-20 02:18:15,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:15,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103181310] [2022-07-20 02:18:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:15,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:15,274 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) [2022-07-20 02:18:15,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 02:18:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:16,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:16,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-20 02:18:18,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-20 02:18:18,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:18,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103181310] [2022-07-20 02:18:18,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103181310] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:18,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:18,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033783453] [2022-07-20 02:18:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:18,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:18,897 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) [2022-07-20 02:18:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:19,827 INFO L93 Difference]: Finished difference Result 42759 states and 57713 transitions. [2022-07-20 02:18:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:19,827 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 [2022-07-20 02:18:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:19,965 INFO L225 Difference]: With dead ends: 42759 [2022-07-20 02:18:19,966 INFO L226 Difference]: Without dead ends: 42757 [2022-07-20 02:18:19,988 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 [2022-07-20 02:18:19,989 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 [2022-07-20 02:18:19,989 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] [2022-07-20 02:18:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42757 states. [2022-07-20 02:18:21,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42757 to 42757. [2022-07-20 02:18:21,342 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) [2022-07-20 02:18:21,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 57711 transitions. [2022-07-20 02:18:21,598 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 57711 transitions. Word has length 229 [2022-07-20 02:18:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:21,599 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 57711 transitions. [2022-07-20 02:18:21,599 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) [2022-07-20 02:18:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 57711 transitions. [2022-07-20 02:18:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-20 02:18:21,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:21,601 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] [2022-07-20 02:18:21,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-20 02:18:21,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:21,810 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)] === [2022-07-20 02:18:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1745080822, now seen corresponding path program 1 times [2022-07-20 02:18:21,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:21,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606151206] [2022-07-20 02:18:21,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:21,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:21,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:21,822 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) [2022-07-20 02:18:21,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 02:18:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:23,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:23,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-20 02:18:24,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-20 02:18:25,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:25,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606151206] [2022-07-20 02:18:25,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606151206] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:25,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:25,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686359305] [2022-07-20 02:18:25,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:25,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:25,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:25,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:25,338 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) [2022-07-20 02:18:26,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:26,435 INFO L93 Difference]: Finished difference Result 42763 states and 57716 transitions. [2022-07-20 02:18:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:26,436 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 [2022-07-20 02:18:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:26,561 INFO L225 Difference]: With dead ends: 42763 [2022-07-20 02:18:26,561 INFO L226 Difference]: Without dead ends: 42761 [2022-07-20 02:18:26,583 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 [2022-07-20 02:18:26,584 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 [2022-07-20 02:18:26,584 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] [2022-07-20 02:18:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42761 states. [2022-07-20 02:18:27,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42761 to 42761. [2022-07-20 02:18:27,813 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) [2022-07-20 02:18:27,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42761 states to 42761 states and 57714 transitions. [2022-07-20 02:18:27,948 INFO L78 Accepts]: Start accepts. Automaton has 42761 states and 57714 transitions. Word has length 234 [2022-07-20 02:18:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:27,949 INFO L495 AbstractCegarLoop]: Abstraction has 42761 states and 57714 transitions. [2022-07-20 02:18:27,949 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) [2022-07-20 02:18:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42761 states and 57714 transitions. [2022-07-20 02:18:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-20 02:18:27,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:27,952 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] [2022-07-20 02:18:27,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-20 02:18:28,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:28,152 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)] === [2022-07-20 02:18:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1582545610, now seen corresponding path program 1 times [2022-07-20 02:18:28,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:28,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136256679] [2022-07-20 02:18:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:28,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:28,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:28,155 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) [2022-07-20 02:18:28,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 02:18:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:29,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:29,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-20 02:18:31,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-20 02:18:31,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:31,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136256679] [2022-07-20 02:18:31,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136256679] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:31,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:31,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122622278] [2022-07-20 02:18:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:31,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:31,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:31,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:31,855 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) [2022-07-20 02:18:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:32,969 INFO L93 Difference]: Finished difference Result 42767 states and 57719 transitions. [2022-07-20 02:18:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:32,969 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 [2022-07-20 02:18:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:33,128 INFO L225 Difference]: With dead ends: 42767 [2022-07-20 02:18:33,128 INFO L226 Difference]: Without dead ends: 42765 [2022-07-20 02:18:33,157 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 [2022-07-20 02:18:33,158 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 [2022-07-20 02:18:33,158 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] [2022-07-20 02:18:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42765 states. [2022-07-20 02:18:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42765 to 42765. [2022-07-20 02:18:34,480 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) [2022-07-20 02:18:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 57717 transitions. [2022-07-20 02:18:34,633 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 57717 transitions. Word has length 239 [2022-07-20 02:18:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:34,634 INFO L495 AbstractCegarLoop]: Abstraction has 42765 states and 57717 transitions. [2022-07-20 02:18:34,634 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) [2022-07-20 02:18:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 57717 transitions. [2022-07-20 02:18:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-20 02:18:34,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:34,637 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] [2022-07-20 02:18:34,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:34,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:34,837 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)] === [2022-07-20 02:18:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1335184950, now seen corresponding path program 1 times [2022-07-20 02:18:34,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:34,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628542798] [2022-07-20 02:18:34,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:34,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:34,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:34,840 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) [2022-07-20 02:18:34,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 02:18:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:36,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:36,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-20 02:18:38,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-20 02:18:38,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628542798] [2022-07-20 02:18:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628542798] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:38,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:38,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221081542] [2022-07-20 02:18:38,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:38,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:38,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:38,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:38,734 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) [2022-07-20 02:18:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:39,820 INFO L93 Difference]: Finished difference Result 42771 states and 57722 transitions. [2022-07-20 02:18:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:39,821 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 [2022-07-20 02:18:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:39,958 INFO L225 Difference]: With dead ends: 42771 [2022-07-20 02:18:39,958 INFO L226 Difference]: Without dead ends: 42769 [2022-07-20 02:18:39,986 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 [2022-07-20 02:18:39,987 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 [2022-07-20 02:18:39,987 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] [2022-07-20 02:18:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2022-07-20 02:18:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 42769. [2022-07-20 02:18:41,424 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) [2022-07-20 02:18:41,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42769 states to 42769 states and 57720 transitions. [2022-07-20 02:18:41,570 INFO L78 Accepts]: Start accepts. Automaton has 42769 states and 57720 transitions. Word has length 244 [2022-07-20 02:18:41,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:41,571 INFO L495 AbstractCegarLoop]: Abstraction has 42769 states and 57720 transitions. [2022-07-20 02:18:41,571 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) [2022-07-20 02:18:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 42769 states and 57720 transitions. [2022-07-20 02:18:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-20 02:18:41,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:41,575 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] [2022-07-20 02:18:41,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:41,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:41,791 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)] === [2022-07-20 02:18:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1883236854, now seen corresponding path program 1 times [2022-07-20 02:18:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276442087] [2022-07-20 02:18:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:41,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:41,794 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) [2022-07-20 02:18:41,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 02:18:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:43,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:18:43,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-20 02:18:44,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-20 02:18:45,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:45,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276442087] [2022-07-20 02:18:45,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276442087] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:18:45,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:18:45,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:18:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138886619] [2022-07-20 02:18:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:18:45,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:18:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:18:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:18:45,601 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) [2022-07-20 02:18:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:18:47,009 INFO L93 Difference]: Finished difference Result 42775 states and 57725 transitions. [2022-07-20 02:18:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:18:47,010 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 [2022-07-20 02:18:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:18:47,189 INFO L225 Difference]: With dead ends: 42775 [2022-07-20 02:18:47,189 INFO L226 Difference]: Without dead ends: 42773 [2022-07-20 02:18:47,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:18:47,215 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 [2022-07-20 02:18:47,215 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] [2022-07-20 02:18:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42773 states. [2022-07-20 02:18:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42773 to 42773. [2022-07-20 02:18:48,810 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) [2022-07-20 02:18:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42773 states to 42773 states and 57723 transitions. [2022-07-20 02:18:48,949 INFO L78 Accepts]: Start accepts. Automaton has 42773 states and 57723 transitions. Word has length 249 [2022-07-20 02:18:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:18:48,950 INFO L495 AbstractCegarLoop]: Abstraction has 42773 states and 57723 transitions. [2022-07-20 02:18:48,950 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) [2022-07-20 02:18:48,951 INFO L276 IsEmpty]: Start isEmpty. Operand 42773 states and 57723 transitions. [2022-07-20 02:18:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-20 02:18:48,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:18:48,955 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] [2022-07-20 02:18:48,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 02:18:49,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:18:49,183 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)] === [2022-07-20 02:18:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:18:49,184 INFO L85 PathProgramCache]: Analyzing trace with hash 789674925, now seen corresponding path program 1 times [2022-07-20 02:18:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:18:49,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369568367] [2022-07-20 02:18:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:18:49,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:18:49,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:18:49,187 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) [2022-07-20 02:18:49,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 02:18:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:18:50,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 02:18:50,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:18:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-07-20 02:18:51,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:18:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-07-20 02:18:53,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:18:53,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369568367] [2022-07-20 02:18:53,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369568367] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:18:53,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:18:53,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-20 02:18:53,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214833649] [2022-07-20 02:18:53,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:18:53,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 02:18:53,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:18:53,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 02:18:53,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-20 02:18:53,055 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) [2022-07-20 02:19:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:19:17,287 INFO L93 Difference]: Finished difference Result 85632 states and 115486 transitions. [2022-07-20 02:19:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-20 02:19:17,289 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 [2022-07-20 02:19:17,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:19:17,610 INFO L225 Difference]: With dead ends: 85632 [2022-07-20 02:19:17,610 INFO L226 Difference]: Without dead ends: 85288 [2022-07-20 02:19:17,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-20 02:19:17,663 INFO L413 NwaCegarLoop]: 5886 mSDtfsCounter, 8533 mSDsluCounter, 67239 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s 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, 18.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:19:17,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 73125 Invalid, 6052 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2110 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2022-07-20 02:19:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85288 states. [2022-07-20 02:19:20,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85288 to 85011. [2022-07-20 02:19:21,034 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) [2022-07-20 02:19:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85011 states to 85011 states and 114760 transitions. [2022-07-20 02:19:21,594 INFO L78 Accepts]: Start accepts. Automaton has 85011 states and 114760 transitions. Word has length 272 [2022-07-20 02:19:21,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:19:21,595 INFO L495 AbstractCegarLoop]: Abstraction has 85011 states and 114760 transitions. [2022-07-20 02:19:21,595 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) [2022-07-20 02:19:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 85011 states and 114760 transitions. [2022-07-20 02:19:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-20 02:19:21,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:19:21,598 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] [2022-07-20 02:19:21,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 02:19:21,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:19:21,819 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)] === [2022-07-20 02:19:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:19:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash -669373834, now seen corresponding path program 1 times [2022-07-20 02:19:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:19:21,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574646572] [2022-07-20 02:19:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:19:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:19:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:19:21,823 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) [2022-07-20 02:19:21,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 02:19:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:19:23,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:19:23,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:19:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-20 02:19:24,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:19:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-20 02:19:25,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:19:25,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574646572] [2022-07-20 02:19:25,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574646572] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:19:25,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:19:25,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:19:25,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181685438] [2022-07-20 02:19:25,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:19:25,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:19:25,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:19:25,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:19:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:19:25,544 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) [2022-07-20 02:19:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:19:28,218 INFO L93 Difference]: Finished difference Result 85017 states and 114765 transitions. [2022-07-20 02:19:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:19:28,218 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 [2022-07-20 02:19:28,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:19:28,585 INFO L225 Difference]: With dead ends: 85017 [2022-07-20 02:19:28,586 INFO L226 Difference]: Without dead ends: 85015 [2022-07-20 02:19:28,642 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 [2022-07-20 02:19:28,642 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, 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 [2022-07-20 02:19:28,642 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] [2022-07-20 02:19:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85015 states. [2022-07-20 02:19:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85015 to 85015. [2022-07-20 02:19:32,011 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) [2022-07-20 02:19:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85015 states to 85015 states and 114763 transitions. [2022-07-20 02:19:32,314 INFO L78 Accepts]: Start accepts. Automaton has 85015 states and 114763 transitions. Word has length 254 [2022-07-20 02:19:32,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:19:32,314 INFO L495 AbstractCegarLoop]: Abstraction has 85015 states and 114763 transitions. [2022-07-20 02:19:32,315 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) [2022-07-20 02:19:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 85015 states and 114763 transitions. [2022-07-20 02:19:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 02:19:32,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:19:32,327 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] [2022-07-20 02:19:32,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-20 02:19:32,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:19:32,551 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)] === [2022-07-20 02:19:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:19:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1856695990, now seen corresponding path program 1 times [2022-07-20 02:19:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:19:32,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057269253] [2022-07-20 02:19:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:19:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:19:32,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:19:32,554 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) [2022-07-20 02:19:32,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 02:19:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:19:33,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:19:33,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:19:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-20 02:19:35,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:19:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-20 02:19:36,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:19:36,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057269253] [2022-07-20 02:19:36,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057269253] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:19:36,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:19:36,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:19:36,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15736963] [2022-07-20 02:19:36,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:19:36,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:19:36,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:19:36,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:19:36,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:19:36,601 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) [2022-07-20 02:19:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:19:39,797 INFO L93 Difference]: Finished difference Result 85021 states and 114768 transitions. [2022-07-20 02:19:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:19:39,798 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 [2022-07-20 02:19:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:19:40,125 INFO L225 Difference]: With dead ends: 85021 [2022-07-20 02:19:40,126 INFO L226 Difference]: Without dead ends: 85019 [2022-07-20 02:19:40,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:19:40,180 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 [2022-07-20 02:19:40,180 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] [2022-07-20 02:19:40,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85019 states. [2022-07-20 02:19:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85019 to 85019. [2022-07-20 02:19:44,007 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) [2022-07-20 02:19:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85019 states to 85019 states and 114766 transitions. [2022-07-20 02:19:44,319 INFO L78 Accepts]: Start accepts. Automaton has 85019 states and 114766 transitions. Word has length 259 [2022-07-20 02:19:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:19:44,319 INFO L495 AbstractCegarLoop]: Abstraction has 85019 states and 114766 transitions. [2022-07-20 02:19:44,320 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) [2022-07-20 02:19:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 85019 states and 114766 transitions. [2022-07-20 02:19:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-20 02:19:44,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:19:44,324 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] [2022-07-20 02:19:44,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 02:19:44,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:19:44,539 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)] === [2022-07-20 02:19:44,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:19:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1072865111, now seen corresponding path program 1 times [2022-07-20 02:19:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:19:44,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503858064] [2022-07-20 02:19:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:19:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:19:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:19:44,542 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) [2022-07-20 02:19:44,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 02:19:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:19:45,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:19:45,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:19:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-20 02:19:46,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:19:46,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:19:46,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503858064] [2022-07-20 02:19:46,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503858064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:19:46,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:19:46,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:19:46,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998876556] [2022-07-20 02:19:46,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:19:46,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:19:46,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:19:46,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:19:46,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:19:46,423 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) [2022-07-20 02:19:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:19:59,220 INFO L93 Difference]: Finished difference Result 182849 states and 246581 transitions. [2022-07-20 02:19:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:19:59,221 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 290 [2022-07-20 02:19:59,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:19:59,867 INFO L225 Difference]: With dead ends: 182849 [2022-07-20 02:19:59,867 INFO L226 Difference]: Without dead ends: 97867 [2022-07-20 02:20:00,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:20:00,118 INFO L413 NwaCegarLoop]: 5071 mSDtfsCounter, 1918 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 10553 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:00,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 10553 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 02:20:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97867 states. [2022-07-20 02:20:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97867 to 97805. [2022-07-20 02:20:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97805 states, 67078 states have (on average 1.2304928590596023) internal successors, (82539), 68216 states have internal predecessors, (82539), 24335 states have call successors, (24335), 6545 states have call predecessors, (24335), 6389 states have return successors, (24644), 23831 states have call predecessors, (24644), 24328 states have call successors, (24644)