./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-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN --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 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:30:28,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:30:28,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:30:28,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:30:28,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:30:28,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:30:28,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:30:28,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:30:28,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:30:28,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:30:28,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:30:28,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:30:28,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:30:28,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:30:28,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:30:28,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:30:28,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:30:28,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:30:28,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:30:28,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:30:28,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:30:28,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:30:28,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:30:28,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:30:28,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:30:28,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:30:28,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:30:28,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:30:28,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:30:28,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:30:28,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:30:28,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:30:28,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:30:28,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:30:28,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:30:28,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:30:28,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:30:28,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:30:28,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:30:28,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:30:28,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:30:28,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:30:28,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:30:28,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:30:28,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:30:28,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:30:28,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:30:28,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:30:28,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:30:28,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:30:28,706 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:30:28,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:30:28,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:30:28,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:30:28,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:30:28,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:30:28,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:30:28,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:30:28,708 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:30:28,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:30:28,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:30:28,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:30:28,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:30:28,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:30:28,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:30:28,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:30:28,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:30:28,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:30:28,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:30:28,711 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:30:28,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:30:28,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:30:28,712 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2022-11-20 12:30:29,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:30:29,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:30:29,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:30:29,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:30:29,051 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:30:29,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-11-20 12:30:32,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:30:33,177 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:30:33,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-11-20 12:30:33,251 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/df81b3fc9/2dd4188d459148e3a7a24ac695a2d8a7/FLAGcd9ad87b6 [2022-11-20 12:30:33,274 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/df81b3fc9/2dd4188d459148e3a7a24ac695a2d8a7 [2022-11-20 12:30:33,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:30:33,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:30:33,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:30:33,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:30:33,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:30:33,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:33" (1/1) ... [2022-11-20 12:30:33,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b5693f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:33, skipping insertion in model container [2022-11-20 12:30:33,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:33" (1/1) ... [2022-11-20 12:30:33,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:30:33,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:30:34,219 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 12:30:34,231 INFO L158 Benchmark]: Toolchain (without parser) took 947.43ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 96.7MB in the end (delta: 19.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2022-11-20 12:30:34,232 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:30:34,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 940.57ms. Allocated memory is still 167.8MB. Free memory was 116.1MB in the beginning and 96.7MB in the end (delta: 19.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2022-11-20 12:30:34,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 940.57ms. Allocated memory is still 167.8MB. Free memory was 116.1MB in the beginning and 96.7MB in the end (delta: 19.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN --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 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:30:36,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:30:36,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:30:37,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:30:37,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:30:37,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:30:37,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:30:37,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:30:37,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:30:37,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:30:37,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:30:37,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:30:37,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:30:37,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:30:37,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:30:37,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:30:37,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:30:37,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:30:37,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:30:37,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:30:37,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:30:37,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:30:37,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:30:37,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:30:37,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:30:37,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:30:37,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:30:37,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:30:37,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:30:37,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:30:37,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:30:37,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:30:37,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:30:37,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:30:37,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:30:37,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:30:37,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:30:37,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:30:37,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:30:37,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:30:37,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:30:37,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:30:37,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:30:37,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:30:37,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:30:37,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:30:37,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:30:37,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:30:37,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:30:37,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:30:37,212 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:30:37,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:30:37,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:30:37,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:30:37,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:30:37,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:30:37,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:30:37,215 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:30:37,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:30:37,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:30:37,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:30:37,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:30:37,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:30:37,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:30:37,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:30:37,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:30:37,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:30:37,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:30:37,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:30:37,219 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:30:37,219 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:30:37,219 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:30:37,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:30:37,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:30:37,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:30:37,221 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2022-11-20 12:30:37,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:30:37,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:30:37,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:30:37,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:30:37,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:30:37,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-11-20 12:30:41,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:30:42,275 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:30:42,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-11-20 12:30:42,343 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/c1bbfabb8/1ecaa13b42884b6e9f325768c46f67ce/FLAG8edfa9f0f [2022-11-20 12:30:42,368 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/data/c1bbfabb8/1ecaa13b42884b6e9f325768c46f67ce [2022-11-20 12:30:42,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:30:42,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:30:42,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:30:42,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:30:42,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:30:42,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:42" (1/1) ... [2022-11-20 12:30:42,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1461aafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:42, skipping insertion in model container [2022-11-20 12:30:42,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:42" (1/1) ... [2022-11-20 12:30:42,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:30:42,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:30:46,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2022-11-20 12:30:46,340 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2022-11-20 12:30:46,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2022-11-20 12:30:46,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2022-11-20 12:30:46,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:30:46,435 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:30:46,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:30:47,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2022-11-20 12:30:47,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2022-11-20 12:30:47,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2022-11-20 12:30:47,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2022-11-20 12:30:47,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:30:47,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:30:47,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2022-11-20 12:30:47,822 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2022-11-20 12:30:47,822 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2022-11-20 12:30:47,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2022-11-20 12:30:47,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:30:48,120 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:30:48,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48 WrapperNode [2022-11-20 12:30:48,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:30:48,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:30:48,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:30:48,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:30:48,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,447 INFO L138 Inliner]: procedures = 461, calls = 2101, calls flagged for inlining = 218, calls inlined = 201, statements flattened = 4789 [2022-11-20 12:30:48,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:30:48,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:30:48,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:30:48,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:30:48,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:30:48,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:30:48,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:30:48,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:30:48,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (1/1) ... [2022-11-20 12:30:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:30:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:48,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:30:48,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:30:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-20 12:30:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2022-11-20 12:30:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2022-11-20 12:30:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 12:30:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 12:30:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:30:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:30:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:30:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:30:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2022-11-20 12:30:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2022-11-20 12:30:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2022-11-20 12:30:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2022-11-20 12:30:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2022-11-20 12:30:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2022-11-20 12:30:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:30:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:30:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2022-11-20 12:30:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2022-11-20 12:30:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:30:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:30:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 12:30:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 12:30:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:30:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:30:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2022-11-20 12:30:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2022-11-20 12:30:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:30:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:30:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2022-11-20 12:30:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2022-11-20 12:30:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-20 12:30:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-20 12:30:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2022-11-20 12:30:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2022-11-20 12:30:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2022-11-20 12:30:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2022-11-20 12:30:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:30:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:30:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2022-11-20 12:30:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2022-11-20 12:30:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:30:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:30:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:30:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:30:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 12:30:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 12:30:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-20 12:30:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-20 12:30:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:30:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:30:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:30:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:30:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:30:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 12:30:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 12:30:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2022-11-20 12:30:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2022-11-20 12:30:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:30:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:30:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:30:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:30:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:30:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:30:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:30:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:30:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:30:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 12:30:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 12:30:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:30:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:30:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:30:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:30:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:30:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:30:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:30:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:30:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2022-11-20 12:30:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2022-11-20 12:30:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2022-11-20 12:30:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2022-11-20 12:30:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:30:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:30:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:30:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:30:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:30:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:30:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:30:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2022-11-20 12:30:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2022-11-20 12:30:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 12:30:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 12:30:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:30:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2022-11-20 12:30:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2022-11-20 12:30:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:30:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:30:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:30:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:30:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:30:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:30:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:30:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:30:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:30:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:30:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 12:30:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 12:30:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 12:30:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 12:30:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:30:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:30:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:30:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:30:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:30:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:30:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 12:30:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 12:30:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:30:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2022-11-20 12:30:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2022-11-20 12:30:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:30:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:30:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2022-11-20 12:30:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2022-11-20 12:30:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:30:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 12:30:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 12:30:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:30:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:30:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:30:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2022-11-20 12:30:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2022-11-20 12:30:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:30:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:30:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:30:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:30:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:30:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:30:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 12:30:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 12:30:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:30:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:30:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2022-11-20 12:30:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2022-11-20 12:30:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 12:30:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 12:30:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:30:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:30:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 12:30:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 12:30:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 12:30:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 12:30:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 12:30:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 12:30:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:30:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:30:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:30:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:30:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:30:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:30:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:30:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:30:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:30:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 12:30:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 12:30:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2022-11-20 12:30:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2022-11-20 12:30:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:30:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:30:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:30:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:30:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 12:30:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 12:30:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2022-11-20 12:30:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2022-11-20 12:30:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-11-20 12:30:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-11-20 12:30:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2022-11-20 12:30:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2022-11-20 12:30:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 12:30:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 12:30:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:30:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:30:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2022-11-20 12:30:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2022-11-20 12:30:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:30:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:30:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:30:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:30:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:30:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:30:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:30:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:30:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 12:30:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 12:30:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-11-20 12:30:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-11-20 12:30:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:30:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:30:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-20 12:30:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-20 12:30:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 12:30:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 12:30:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-20 12:30:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-20 12:30:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:30:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:30:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 12:30:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 12:30:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2022-11-20 12:30:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2022-11-20 12:30:50,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:30:50,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:30:53,981 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:31:22,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:31:23,467 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:31:23,486 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:31:23,486 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:31:23,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:31:23 BoogieIcfgContainer [2022-11-20 12:31:23,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:31:23,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:31:23,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:31:23,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:31:23,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:30:42" (1/3) ... [2022-11-20 12:31:23,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b703d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:31:23, skipping insertion in model container [2022-11-20 12:31:23,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:48" (2/3) ... [2022-11-20 12:31:23,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b703d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:31:23, skipping insertion in model container [2022-11-20 12:31:23,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:31:23" (3/3) ... [2022-11-20 12:31:23,500 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-11-20 12:31:23,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:31:23,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:31:23,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:31:23,613 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9f434f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:31:23,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:31:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 1988 states, 1334 states have (on average 1.2991004497751124) internal successors, (1733), 1374 states have internal predecessors, (1733), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) [2022-11-20 12:31:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 12:31:23,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:23,644 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:23,645 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)] === [2022-11-20 12:31:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash -924387521, now seen corresponding path program 1 times [2022-11-20 12:31:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:23,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047386911] [2022-11-20 12:31:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:23,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:23,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:23,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:23,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:31:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:25,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:25,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:25,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:25,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:25,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047386911] [2022-11-20 12:31:25,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047386911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:25,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:25,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393788761] [2022-11-20 12:31:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:25,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:25,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:25,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:25,209 INFO L87 Difference]: Start difference. First operand has 1988 states, 1334 states have (on average 1.2991004497751124) internal successors, (1733), 1374 states have internal predecessors, (1733), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:27,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:27,852 INFO L93 Difference]: Finished difference Result 5820 states and 8493 transitions. [2022-11-20 12:31:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:27,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-11-20 12:31:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:27,911 INFO L225 Difference]: With dead ends: 5820 [2022-11-20 12:31:27,911 INFO L226 Difference]: Without dead ends: 3843 [2022-11-20 12:31:27,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:27,940 INFO L413 NwaCegarLoop]: 3363 mSDtfsCounter, 2700 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 6141 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:27,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 6141 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:31:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2022-11-20 12:31:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3839. [2022-11-20 12:31:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3839 states, 2591 states have (on average 1.2913932844461598) internal successors, (3346), 2670 states have internal predecessors, (3346), 1071 states have call successors, (1071), 175 states have call predecessors, (1071), 174 states have return successors, (1067), 1039 states have call predecessors, (1067), 1067 states have call successors, (1067) [2022-11-20 12:31:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 5484 transitions. [2022-11-20 12:31:28,416 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 5484 transitions. Word has length 116 [2022-11-20 12:31:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:31:28,417 INFO L495 AbstractCegarLoop]: Abstraction has 3839 states and 5484 transitions. [2022-11-20 12:31:28,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 5484 transitions. [2022-11-20 12:31:28,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 12:31:28,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:28,427 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:28,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:31:28,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:28,655 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)] === [2022-11-20 12:31:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash -602955590, now seen corresponding path program 1 times [2022-11-20 12:31:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:28,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147937678] [2022-11-20 12:31:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:28,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:28,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:28,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:31:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:30,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:30,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:30,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:30,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147937678] [2022-11-20 12:31:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147937678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:30,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:30,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:30,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968509284] [2022-11-20 12:31:30,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:30,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:30,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:30,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:30,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:30,198 INFO L87 Difference]: Start difference. First operand 3839 states and 5484 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:32,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:32,819 INFO L93 Difference]: Finished difference Result 10631 states and 15120 transitions. [2022-11-20 12:31:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:32,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2022-11-20 12:31:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:32,863 INFO L225 Difference]: With dead ends: 10631 [2022-11-20 12:31:32,864 INFO L226 Difference]: Without dead ends: 6813 [2022-11-20 12:31:32,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:32,886 INFO L413 NwaCegarLoop]: 3487 mSDtfsCounter, 2585 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 5847 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:32,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 5847 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 12:31:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6813 states. [2022-11-20 12:31:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6813 to 6781. [2022-11-20 12:31:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6781 states, 4621 states have (on average 1.2893313135684916) internal successors, (5958), 4767 states have internal predecessors, (5958), 1828 states have call successors, (1828), 340 states have call predecessors, (1828), 329 states have return successors, (1834), 1749 states have call predecessors, (1834), 1824 states have call successors, (1834) [2022-11-20 12:31:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6781 states to 6781 states and 9620 transitions. [2022-11-20 12:31:33,340 INFO L78 Accepts]: Start accepts. Automaton has 6781 states and 9620 transitions. Word has length 117 [2022-11-20 12:31:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:31:33,341 INFO L495 AbstractCegarLoop]: Abstraction has 6781 states and 9620 transitions. [2022-11-20 12:31:33,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:33,341 INFO L276 IsEmpty]: Start isEmpty. Operand 6781 states and 9620 transitions. [2022-11-20 12:31:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 12:31:33,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:33,351 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:33,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:31:33,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:33,564 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)] === [2022-11-20 12:31:33,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:33,565 INFO L85 PathProgramCache]: Analyzing trace with hash -227808461, now seen corresponding path program 1 times [2022-11-20 12:31:33,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:33,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069154807] [2022-11-20 12:31:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:33,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:33,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:33,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:31:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:34,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:34,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:34,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:34,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069154807] [2022-11-20 12:31:34,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069154807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:34,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:34,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684603951] [2022-11-20 12:31:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:34,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:34,958 INFO L87 Difference]: Start difference. First operand 6781 states and 9620 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:37,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:38,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:38,257 INFO L93 Difference]: Finished difference Result 19311 states and 27408 transitions. [2022-11-20 12:31:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:38,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-11-20 12:31:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:38,408 INFO L225 Difference]: With dead ends: 19311 [2022-11-20 12:31:38,409 INFO L226 Difference]: Without dead ends: 12551 [2022-11-20 12:31:38,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:38,474 INFO L413 NwaCegarLoop]: 3382 mSDtfsCounter, 2456 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:38,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 6109 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:31:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2022-11-20 12:31:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12519. [2022-11-20 12:31:39,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12519 states, 8511 states have (on average 1.2924450710844788) internal successors, (11000), 8789 states have internal predecessors, (11000), 3368 states have call successors, (3368), 660 states have call predecessors, (3368), 637 states have return successors, (3388), 3207 states have call predecessors, (3388), 3364 states have call successors, (3388) [2022-11-20 12:31:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12519 states to 12519 states and 17756 transitions. [2022-11-20 12:31:39,654 INFO L78 Accepts]: Start accepts. Automaton has 12519 states and 17756 transitions. Word has length 121 [2022-11-20 12:31:39,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:31:39,655 INFO L495 AbstractCegarLoop]: Abstraction has 12519 states and 17756 transitions. [2022-11-20 12:31:39,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12519 states and 17756 transitions. [2022-11-20 12:31:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 12:31:39,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:39,660 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:39,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:31:39,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:39,884 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)] === [2022-11-20 12:31:39,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:39,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2109175464, now seen corresponding path program 1 times [2022-11-20 12:31:39,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:39,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447158738] [2022-11-20 12:31:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:39,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:39,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:39,889 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:39,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:31:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:41,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:41,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:41,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:41,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447158738] [2022-11-20 12:31:41,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447158738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:41,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:41,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633886737] [2022-11-20 12:31:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:41,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:41,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:41,387 INFO L87 Difference]: Start difference. First operand 12519 states and 17756 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:43,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:44,656 INFO L93 Difference]: Finished difference Result 24730 states and 35028 transitions. [2022-11-20 12:31:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:44,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-11-20 12:31:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:44,733 INFO L225 Difference]: With dead ends: 24730 [2022-11-20 12:31:44,734 INFO L226 Difference]: Without dead ends: 12232 [2022-11-20 12:31:44,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:44,789 INFO L413 NwaCegarLoop]: 3592 mSDtfsCounter, 2058 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 6340 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:44,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 6340 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:31:44,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-11-20 12:31:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 12200. [2022-11-20 12:31:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12200 states, 8238 states have (on average 1.2813789754794853) internal successors, (10556), 8506 states have internal predecessors, (10556), 3300 states have call successors, (3300), 682 states have call predecessors, (3300), 659 states have return successors, (3308), 3149 states have call predecessors, (3308), 3296 states have call successors, (3308) [2022-11-20 12:31:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12200 states to 12200 states and 17164 transitions. [2022-11-20 12:31:45,765 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 17164 transitions. Word has length 126 [2022-11-20 12:31:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:31:45,767 INFO L495 AbstractCegarLoop]: Abstraction has 12200 states and 17164 transitions. [2022-11-20 12:31:45,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:31:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 17164 transitions. [2022-11-20 12:31:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 12:31:45,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:45,770 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:45,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:31:45,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:45,997 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-11-20 12:31:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:45,998 INFO L85 PathProgramCache]: Analyzing trace with hash -668674676, now seen corresponding path program 1 times [2022-11-20 12:31:45,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:45,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870787856] [2022-11-20 12:31:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:45,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:46,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:46,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:46,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:31:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:47,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:47,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:47,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:47,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:47,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870787856] [2022-11-20 12:31:47,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870787856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:47,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:47,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:47,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457076444] [2022-11-20 12:31:47,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:47,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:47,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:47,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:47,256 INFO L87 Difference]: Start difference. First operand 12200 states and 17164 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:31:49,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:50,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:50,495 INFO L93 Difference]: Finished difference Result 32382 states and 45637 transitions. [2022-11-20 12:31:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:50,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 128 [2022-11-20 12:31:50,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:50,594 INFO L225 Difference]: With dead ends: 32382 [2022-11-20 12:31:50,594 INFO L226 Difference]: Without dead ends: 20203 [2022-11-20 12:31:50,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:50,644 INFO L413 NwaCegarLoop]: 3365 mSDtfsCounter, 2488 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 6164 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 6164 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 12:31:50,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20203 states. [2022-11-20 12:31:52,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20203 to 20141. [2022-11-20 12:31:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20141 states, 13461 states have (on average 1.276799643414308) internal successors, (17187), 13943 states have internal predecessors, (17187), 5562 states have call successors, (5562), 1156 states have call predecessors, (5562), 1115 states have return successors, (5642), 5273 states have call predecessors, (5642), 5558 states have call successors, (5642) [2022-11-20 12:31:52,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20141 states to 20141 states and 28391 transitions. [2022-11-20 12:31:52,175 INFO L78 Accepts]: Start accepts. Automaton has 20141 states and 28391 transitions. Word has length 128 [2022-11-20 12:31:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:31:52,176 INFO L495 AbstractCegarLoop]: Abstraction has 20141 states and 28391 transitions. [2022-11-20 12:31:52,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:31:52,176 INFO L276 IsEmpty]: Start isEmpty. Operand 20141 states and 28391 transitions. [2022-11-20 12:31:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-20 12:31:52,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:31:52,179 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-11-20 12:31:52,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:31:52,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:52,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-11-20 12:31:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -168394746, now seen corresponding path program 1 times [2022-11-20 12:31:52,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:31:52,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546075749] [2022-11-20 12:31:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:52,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:31:52,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:31:52,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:31:52,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:31:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:53,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:31:53,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:31:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:31:53,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:31:53,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:31:53,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546075749] [2022-11-20 12:31:53,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546075749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:53,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:53,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:31:53,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945486839] [2022-11-20 12:31:53,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:53,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:31:53,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:31:53,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:31:53,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:53,971 INFO L87 Difference]: Start difference. First operand 20141 states and 28391 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:31:56,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:31:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:31:57,798 INFO L93 Difference]: Finished difference Result 58201 states and 82076 transitions. [2022-11-20 12:31:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:31:57,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 140 [2022-11-20 12:31:57,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:31:58,006 INFO L225 Difference]: With dead ends: 58201 [2022-11-20 12:31:58,006 INFO L226 Difference]: Without dead ends: 38081 [2022-11-20 12:31:58,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:31:58,106 INFO L413 NwaCegarLoop]: 3702 mSDtfsCounter, 2763 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 6506 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:31:58,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 6506 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 12:31:58,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38081 states. [2022-11-20 12:32:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38081 to 38023. [2022-11-20 12:32:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38023 states, 25458 states have (on average 1.2771623851048786) internal successors, (32514), 26392 states have internal predecessors, (32514), 10459 states have call successors, (10459), 2184 states have call predecessors, (10459), 2103 states have return successors, (10623), 9878 states have call predecessors, (10623), 10455 states have call successors, (10623) [2022-11-20 12:32:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38023 states to 38023 states and 53596 transitions. [2022-11-20 12:32:01,066 INFO L78 Accepts]: Start accepts. Automaton has 38023 states and 53596 transitions. Word has length 140 [2022-11-20 12:32:01,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:32:01,067 INFO L495 AbstractCegarLoop]: Abstraction has 38023 states and 53596 transitions. [2022-11-20 12:32:01,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:32:01,067 INFO L276 IsEmpty]: Start isEmpty. Operand 38023 states and 53596 transitions. [2022-11-20 12:32:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-20 12:32:01,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:32:01,071 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 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] [2022-11-20 12:32:01,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:32:01,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:01,293 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)] === [2022-11-20 12:32:01,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:32:01,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1723692747, now seen corresponding path program 1 times [2022-11-20 12:32:01,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:32:01,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425191384] [2022-11-20 12:32:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:32:01,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:32:01,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:32:01,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:32:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:32:02,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:32:02,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:32:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-11-20 12:32:02,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:32:02,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:32:02,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425191384] [2022-11-20 12:32:02,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425191384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:32:02,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:32:02,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:32:02,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999561178] [2022-11-20 12:32:02,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:32:02,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:32:02,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:32:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:32:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:32:02,744 INFO L87 Difference]: Start difference. First operand 38023 states and 53596 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:32:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:32:04,966 INFO L93 Difference]: Finished difference Result 75969 states and 107101 transitions. [2022-11-20 12:32:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:32:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 159 [2022-11-20 12:32:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:32:05,203 INFO L225 Difference]: With dead ends: 75969 [2022-11-20 12:32:05,203 INFO L226 Difference]: Without dead ends: 38023 [2022-11-20 12:32:05,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:32:05,390 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 12 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5614 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:32:05,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5614 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:32:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38023 states. [2022-11-20 12:32:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38023 to 38023. [2022-11-20 12:32:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38023 states, 25458 states have (on average 1.2759054128368292) internal successors, (32482), 26392 states have internal predecessors, (32482), 10459 states have call successors, (10459), 2184 states have call predecessors, (10459), 2103 states have return successors, (10623), 9878 states have call predecessors, (10623), 10455 states have call successors, (10623) [2022-11-20 12:32:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38023 states to 38023 states and 53564 transitions. [2022-11-20 12:32:08,725 INFO L78 Accepts]: Start accepts. Automaton has 38023 states and 53564 transitions. Word has length 159 [2022-11-20 12:32:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:32:08,726 INFO L495 AbstractCegarLoop]: Abstraction has 38023 states and 53564 transitions. [2022-11-20 12:32:08,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:32:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 38023 states and 53564 transitions. [2022-11-20 12:32:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 12:32:08,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:32:08,731 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 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] [2022-11-20 12:32:08,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:32:08,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:08,944 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-11-20 12:32:08,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:32:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2069553174, now seen corresponding path program 1 times [2022-11-20 12:32:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:32:08,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692798060] [2022-11-20 12:32:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:32:08,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:08,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:32:08,949 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:32:08,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:32:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:32:10,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:32:10,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:32:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-20 12:32:10,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:32:10,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:32:10,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692798060] [2022-11-20 12:32:10,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692798060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:32:10,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:32:10,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:32:10,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130549856] [2022-11-20 12:32:10,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:32:10,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:32:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:32:10,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:32:10,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:32:10,633 INFO L87 Difference]: Start difference. First operand 38023 states and 53564 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 12:32:12,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:32:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:32:16,641 INFO L93 Difference]: Finished difference Result 111893 states and 157837 transitions. [2022-11-20 12:32:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:32:16,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2022-11-20 12:32:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:32:17,208 INFO L225 Difference]: With dead ends: 111893 [2022-11-20 12:32:17,209 INFO L226 Difference]: Without dead ends: 73947 [2022-11-20 12:32:17,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:32:17,381 INFO L413 NwaCegarLoop]: 3875 mSDtfsCounter, 2660 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 6665 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:32:17,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 6665 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 12:32:17,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73947 states. [2022-11-20 12:32:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73947 to 73943. [2022-11-20 12:32:21,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73943 states, 49530 states have (on average 1.276721179083384) internal successors, (63236), 51252 states have internal predecessors, (63236), 20317 states have call successors, (20317), 4238 states have call predecessors, (20317), 4093 states have return successors, (20649), 19316 states have call predecessors, (20649), 20313 states have call successors, (20649) [2022-11-20 12:32:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73943 states to 73943 states and 104202 transitions. [2022-11-20 12:32:22,465 INFO L78 Accepts]: Start accepts. Automaton has 73943 states and 104202 transitions. Word has length 175 [2022-11-20 12:32:22,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:32:22,465 INFO L495 AbstractCegarLoop]: Abstraction has 73943 states and 104202 transitions. [2022-11-20 12:32:22,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 12:32:22,466 INFO L276 IsEmpty]: Start isEmpty. Operand 73943 states and 104202 transitions. [2022-11-20 12:32:22,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 12:32:22,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:32:22,469 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 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] [2022-11-20 12:32:22,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-20 12:32:22,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:22,684 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)] === [2022-11-20 12:32:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:32:22,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2084865512, now seen corresponding path program 1 times [2022-11-20 12:32:22,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:32:22,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146310069] [2022-11-20 12:32:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:32:22,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:32:22,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:32:22,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:32:22,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0404b635-29fd-42d4-92ff-366c9d4507cc/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:32:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:32:23,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:32:23,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:32:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-20 12:32:24,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:32:24,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:32:24,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146310069] [2022-11-20 12:32:24,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146310069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:32:24,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:32:24,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:32:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968262230] [2022-11-20 12:32:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:32:24,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:32:24,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:32:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:32:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:32:24,978 INFO L87 Difference]: Start difference. First operand 73943 states and 104202 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)