./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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_364f1b28-492d-4fb7-ab9c-877e3b134660/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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- 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 11:06:16,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:16,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:16,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:16,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:16,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:16,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:16,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:16,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:16,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:16,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:16,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:16,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:16,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:16,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:16,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:16,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:16,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:16,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:16,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:16,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:16,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:16,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:16,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:16,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:16,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:16,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:16,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:16,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:16,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:16,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:16,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:16,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:16,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:16,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:16,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:16,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:16,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:16,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:16,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:16,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:16,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:06:16,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:16,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:16,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:16,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:16,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:16,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:16,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:16,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:16,963 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:16,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:16,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:16,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:16,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:16,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:16,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:16,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:16,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:16,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:16,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:16,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:16,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:16,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:16,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:16,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:16,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:16,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:16,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:16,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:16,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:16,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:16,967 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_364f1b28-492d-4fb7-ab9c-877e3b134660/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-20 11:06:17,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:17,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:17,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:17,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:17,268 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:17,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 11:06:20,386 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:21,017 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:21,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 11:06:21,063 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/fa89f721d/fb150e96aae94ab9a3858c13cd95c383/FLAGf3c3ca088 [2022-11-20 11:06:21,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/fa89f721d/fb150e96aae94ab9a3858c13cd95c383 [2022-11-20 11:06:21,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:21,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:21,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:21,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:21,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:21,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:21" (1/1) ... [2022-11-20 11:06:21,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b19901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:21, skipping insertion in model container [2022-11-20 11:06:21,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:21" (1/1) ... [2022-11-20 11:06:21,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:21,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:21,764 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 11:06:21,770 INFO L158 Benchmark]: Toolchain (without parser) took 679.60ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 101.4MB in the end (delta: 16.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:06:21,770 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:21,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.30ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 101.4MB in the end (delta: 16.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:06:21,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.30ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 101.4MB in the end (delta: 16.1MB). Peak memory consumption was 37.7MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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_364f1b28-492d-4fb7-ab9c-877e3b134660/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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- 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 11:06:24,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:24,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:24,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:24,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:24,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:24,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:24,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:24,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:24,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:24,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:24,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:24,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:24,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:24,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:24,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:24,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:24,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:24,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:24,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:24,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:24,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:24,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:24,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:24,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:24,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:24,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:24,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:24,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:24,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:24,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:24,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:24,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:24,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:24,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:24,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:24,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:24,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:24,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:24,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:24,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:24,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:06:24,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:24,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:24,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:24,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:24,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:24,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:24,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:24,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:24,141 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:24,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:24,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:24,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:24,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:24,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:24,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:06:24,143 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:06:24,143 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:06:24,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:24,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:24,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:24,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:24,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:24,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:24,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:24,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:24,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:24,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:24,146 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:06:24,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:06:24,146 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:24,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:24,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:24,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:06:24,147 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_364f1b28-492d-4fb7-ab9c-877e3b134660/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-20 11:06:24,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:24,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:24,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:24,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:24,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:24,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 11:06:27,677 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:28,406 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:28,407 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 11:06:28,465 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/298c23197/7579a928091348bcb33af8e869ffe6db/FLAG5055cfa2e [2022-11-20 11:06:28,490 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/data/298c23197/7579a928091348bcb33af8e869ffe6db [2022-11-20 11:06:28,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:28,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:28,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:28,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:28,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:28,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:28" (1/1) ... [2022-11-20 11:06:28,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ee42b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:28, skipping insertion in model container [2022-11-20 11:06:28,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:28" (1/1) ... [2022-11-20 11:06:28,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:28,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:31,302 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-20 11:06:31,306 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-20 11:06:31,312 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-20 11:06:31,312 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-20 11:06:31,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:31,428 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:06:31,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:31,823 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-20 11:06:31,824 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-20 11:06:31,824 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-20 11:06:31,825 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-20 11:06:31,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:31,867 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:32,301 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-20 11:06:32,302 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-20 11:06:32,303 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-20 11:06:32,303 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_364f1b28-492d-4fb7-ab9c-877e3b134660/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-20 11:06:32,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:32,555 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:32,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32 WrapperNode [2022-11-20 11:06:32,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:32,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:32,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:32,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:32,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:32,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:32,852 INFO L138 Inliner]: procedures = 445, calls = 1714, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 3950 [2022-11-20 11:06:32,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:32,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:32,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:32,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:32,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:32,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:32,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:32,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,088 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:33,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:33,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:33,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:33,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (1/1) ... [2022-11-20 11:06:33,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:33,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:33,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 11:06:33,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 11:06:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:06:33,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:06:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:06:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:06:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:06:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:06:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:06:33,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:06:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 11:06:33,256 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 11:06:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-20 11:06:33,257 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-20 11:06:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:06:33,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:06:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:06:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:06:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 11:06:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 11:06:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-20 11:06:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-20 11:06:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 11:06:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 11:06:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 11:06:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 11:06:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 11:06:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 11:06:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-20 11:06:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-20 11:06:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:06:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:06:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-20 11:06:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-20 11:06:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:06:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:06:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 11:06:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 11:06:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 11:06:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 11:06:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:06:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:06:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:06:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:06:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 11:06:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 11:06:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:06:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:06:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:06:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:06:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:06:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-20 11:06:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-20 11:06:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-20 11:06:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-20 11:06:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:06:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:06:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:06:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:06:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-20 11:06:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-20 11:06:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:06:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:06:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:06:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:06:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:06:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:06:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:06:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:06:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:06:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:06:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:06:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:06:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 11:06:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 11:06:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 11:06:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 11:06:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:06:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:06:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-20 11:06:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-20 11:06:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:06:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:06:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-20 11:06:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-20 11:06:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:06:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:06:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:06:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:06:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:06:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:06:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:06:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:06:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:06:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:06:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:06:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:06:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 11:06:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 11:06:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:06:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:06:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:06:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-20 11:06:33,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-20 11:06:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 11:06:33,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 11:06:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:06:33,284 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:06:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:06:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:06:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:06:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:06:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-20 11:06:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-20 11:06:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-20 11:06:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-20 11:06:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-20 11:06:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-20 11:06:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:06:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:06:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:06:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-20 11:06:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-20 11:06:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 11:06:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 11:06:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-20 11:06:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-20 11:06:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:06:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:06:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:06:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:06:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:06:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:06:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:06:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:06:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-20 11:06:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-20 11:06:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:06:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:06:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:06:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:06:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:06:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:06:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 11:06:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 11:06:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:06:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:06:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-20 11:06:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-20 11:06:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-20 11:06:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-20 11:06:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:06:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:06:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:06:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:06:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-20 11:06:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-20 11:06:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-20 11:06:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-20 11:06:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:06:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-20 11:06:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 11:06:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 11:06:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:06:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:06:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:06:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:06:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 11:06:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 11:06:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 11:06:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 11:06:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-20 11:06:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-20 11:06:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-20 11:06:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-20 11:06:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 11:06:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 11:06:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:06:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:06:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:06:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:06:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:06:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:06:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:06:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-20 11:06:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-20 11:06:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:06:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:06:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-20 11:06:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-20 11:06:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-20 11:06:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-20 11:06:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-20 11:06:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-20 11:06:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-20 11:06:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-20 11:06:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-20 11:06:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-20 11:06:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:06:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:06:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-20 11:06:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-20 11:06:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 11:06:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 11:06:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 11:06:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 11:06:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 11:06:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-20 11:06:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-20 11:06:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:06:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:06:34,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:34,365 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:40,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:07:17,170 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:07:17,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:07:17,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:07:17,327 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:07:17,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:17 BoogieIcfgContainer [2022-11-20 11:07:17,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:07:17,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:07:17,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:07:17,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:07:17,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:28" (1/3) ... [2022-11-20 11:07:17,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf819f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:17, skipping insertion in model container [2022-11-20 11:07:17,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:32" (2/3) ... [2022-11-20 11:07:17,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf819f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:17, skipping insertion in model container [2022-11-20 11:07:17,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:17" (3/3) ... [2022-11-20 11:07:17,350 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 11:07:17,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:07:17,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:07:17,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:07:17,489 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;@4e8d67c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:07:17,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:07:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-20 11:07:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 11:07:17,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:17,525 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 11:07:17,525 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 11:07:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:17,531 INFO L85 PathProgramCache]: Analyzing trace with hash -274697905, now seen corresponding path program 1 times [2022-11-20 11:07:17,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:17,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985916641] [2022-11-20 11:07:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:17,547 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 11:07:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:17,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:17,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:18,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:18,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:19,179 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 11:07:19,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:19,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:19,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985916641] [2022-11-20 11:07:19,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985916641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:19,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:19,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:19,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234048206] [2022-11-20 11:07:19,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:19,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:19,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:19,242 INFO L87 Difference]: Start difference. First operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) 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 11:07:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:20,056 INFO L93 Difference]: Finished difference Result 4874 states and 6858 transitions. [2022-11-20 11:07:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:20,060 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 11:07:20,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:20,108 INFO L225 Difference]: With dead ends: 4874 [2022-11-20 11:07:20,108 INFO L226 Difference]: Without dead ends: 3211 [2022-11-20 11:07:20,127 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 11:07:20,137 INFO L413 NwaCegarLoop]: 2707 mSDtfsCounter, 2157 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:20,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4939 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:07:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2022-11-20 11:07:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3207. [2022-11-20 11:07:20,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 2160 states have (on average 1.2421296296296296) internal successors, (2683), 2227 states have internal predecessors, (2683), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2022-11-20 11:07:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 4395 transitions. [2022-11-20 11:07:20,479 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 4395 transitions. Word has length 116 [2022-11-20 11:07:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:20,480 INFO L495 AbstractCegarLoop]: Abstraction has 3207 states and 4395 transitions. [2022-11-20 11:07:20,480 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 11:07:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 4395 transitions. [2022-11-20 11:07:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 11:07:20,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:20,487 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] [2022-11-20 11:07:20,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:20,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:20,712 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 11:07:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -756882936, now seen corresponding path program 1 times [2022-11-20 11:07:20,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:20,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246320112] [2022-11-20 11:07:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:20,715 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 11:07:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:20,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:20,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:21,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:21,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:22,163 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 11:07:22,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:22,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:22,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246320112] [2022-11-20 11:07:22,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246320112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:22,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:22,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:22,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126477920] [2022-11-20 11:07:22,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:22,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:22,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:22,167 INFO L87 Difference]: Start difference. First operand 3207 states and 4395 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:07:22,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:22,789 INFO L93 Difference]: Finished difference Result 8861 states and 12103 transitions. [2022-11-20 11:07:22,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-11-20 11:07:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:22,841 INFO L225 Difference]: With dead ends: 8861 [2022-11-20 11:07:22,842 INFO L226 Difference]: Without dead ends: 5675 [2022-11-20 11:07:22,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 11:07:22,859 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 1754 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:22,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 4930 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:07:22,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2022-11-20 11:07:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5646. [2022-11-20 11:07:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5646 states, 3795 states have (on average 1.230566534914361) internal successors, (4670), 3909 states have internal predecessors, (4670), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2022-11-20 11:07:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5646 states to 5646 states and 7692 transitions. [2022-11-20 11:07:23,280 INFO L78 Accepts]: Start accepts. Automaton has 5646 states and 7692 transitions. Word has length 120 [2022-11-20 11:07:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:23,281 INFO L495 AbstractCegarLoop]: Abstraction has 5646 states and 7692 transitions. [2022-11-20 11:07:23,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:07:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5646 states and 7692 transitions. [2022-11-20 11:07:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 11:07:23,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:23,287 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:23,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:23,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:23,511 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 11:07:23,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash -241374758, now seen corresponding path program 1 times [2022-11-20 11:07:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:23,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143629132] [2022-11-20 11:07:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:23,514 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 11:07:23,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:23,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:23,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:24,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:24,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-20 11:07:25,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:25,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:25,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143629132] [2022-11-20 11:07:25,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143629132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:25,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:25,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:25,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125787962] [2022-11-20 11:07:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:25,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:25,182 INFO L87 Difference]: Start difference. First operand 5646 states and 7692 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:07:26,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:26,353 INFO L93 Difference]: Finished difference Result 12439 states and 16934 transitions. [2022-11-20 11:07:26,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:26,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2022-11-20 11:07:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:26,406 INFO L225 Difference]: With dead ends: 12439 [2022-11-20 11:07:26,407 INFO L226 Difference]: Without dead ends: 6814 [2022-11-20 11:07:26,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 11:07:26,437 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 1629 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:26,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 5506 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:07:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2022-11-20 11:07:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6787. [2022-11-20 11:07:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 4608 states have (on average 1.2282986111111112) internal successors, (5660), 4739 states have internal predecessors, (5660), 1752 states have call successors, (1752), 432 states have call predecessors, (1752), 424 states have return successors, (1760), 1716 states have call predecessors, (1760), 1748 states have call successors, (1760) [2022-11-20 11:07:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 9172 transitions. [2022-11-20 11:07:26,939 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 9172 transitions. Word has length 165 [2022-11-20 11:07:26,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:26,940 INFO L495 AbstractCegarLoop]: Abstraction has 6787 states and 9172 transitions. [2022-11-20 11:07:26,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:07:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 9172 transitions. [2022-11-20 11:07:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 11:07:26,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:26,947 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:26,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:27,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:27,165 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 11:07:27,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:27,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1332695576, now seen corresponding path program 1 times [2022-11-20 11:07:27,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:27,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421253377] [2022-11-20 11:07:27,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:27,168 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 11:07:27,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:27,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:27,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:28,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:28,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-20 11:07:28,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:28,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:28,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421253377] [2022-11-20 11:07:28,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421253377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:28,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:28,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:28,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384631557] [2022-11-20 11:07:28,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:28,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:28,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:28,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:28,549 INFO L87 Difference]: Start difference. First operand 6787 states and 9172 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:07:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:29,506 INFO L93 Difference]: Finished difference Result 15249 states and 20637 transitions. [2022-11-20 11:07:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:29,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-20 11:07:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:29,606 INFO L225 Difference]: With dead ends: 15249 [2022-11-20 11:07:29,607 INFO L226 Difference]: Without dead ends: 8483 [2022-11-20 11:07:29,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:29,633 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2026 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:29,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 4886 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:07:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8483 states. [2022-11-20 11:07:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8483 to 8455. [2022-11-20 11:07:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5715 states have (on average 1.2290463692038496) internal successors, (7024), 5893 states have internal predecessors, (7024), 2196 states have call successors, (2196), 554 states have call predecessors, (2196), 541 states have return successors, (2213), 2130 states have call predecessors, (2213), 2192 states have call successors, (2213) [2022-11-20 11:07:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 11433 transitions. [2022-11-20 11:07:30,209 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 11433 transitions. Word has length 167 [2022-11-20 11:07:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:30,210 INFO L495 AbstractCegarLoop]: Abstraction has 8455 states and 11433 transitions. [2022-11-20 11:07:30,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:07:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 11433 transitions. [2022-11-20 11:07:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 11:07:30,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:30,214 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] [2022-11-20 11:07:30,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:30,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:30,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:30,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1206652310, now seen corresponding path program 1 times [2022-11-20 11:07:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:30,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125580286] [2022-11-20 11:07:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:30,431 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 11:07:30,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:30,447 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:30,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:32,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:32,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:32,252 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 11:07:32,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:32,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:32,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125580286] [2022-11-20 11:07:32,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125580286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:32,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:32,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:32,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616194730] [2022-11-20 11:07:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:32,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:32,255 INFO L87 Difference]: Start difference. First operand 8455 states and 11433 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 11:07:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:34,152 INFO L93 Difference]: Finished difference Result 24668 states and 33392 transitions. [2022-11-20 11:07:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 172 [2022-11-20 11:07:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:34,297 INFO L225 Difference]: With dead ends: 24668 [2022-11-20 11:07:34,298 INFO L226 Difference]: Without dead ends: 16309 [2022-11-20 11:07:34,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 11:07:34,341 INFO L413 NwaCegarLoop]: 2871 mSDtfsCounter, 2121 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 5112 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:34,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 5112 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:07:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-20 11:07:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16305. [2022-11-20 11:07:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16305 states, 11031 states have (on average 1.228991025292358) internal successors, (13557), 11357 states have internal predecessors, (13557), 4220 states have call successors, (4220), 1072 states have call predecessors, (4220), 1051 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-20 11:07:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16305 states to 16305 states and 22035 transitions. [2022-11-20 11:07:35,959 INFO L78 Accepts]: Start accepts. Automaton has 16305 states and 22035 transitions. Word has length 172 [2022-11-20 11:07:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:35,960 INFO L495 AbstractCegarLoop]: Abstraction has 16305 states and 22035 transitions. [2022-11-20 11:07:35,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 11:07:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 16305 states and 22035 transitions. [2022-11-20 11:07:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 11:07:35,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:35,966 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] [2022-11-20 11:07:36,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:36,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:36,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:36,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1347200920, now seen corresponding path program 1 times [2022-11-20 11:07:36,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:36,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400624209] [2022-11-20 11:07:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:36,182 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 11:07:36,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:36,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:36,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:07:37,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:39,724 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 11:07:39,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:39,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:39,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400624209] [2022-11-20 11:07:39,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400624209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:39,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:39,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:07:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572107795] [2022-11-20 11:07:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:07:39,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:07:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:07:39,727 INFO L87 Difference]: Start difference. First operand 16305 states and 22035 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-20 11:07:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:41,235 INFO L93 Difference]: Finished difference Result 16311 states and 22040 transitions. [2022-11-20 11:07:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:07:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 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) Word has length 172 [2022-11-20 11:07:41,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:41,387 INFO L225 Difference]: With dead ends: 16311 [2022-11-20 11:07:41,387 INFO L226 Difference]: Without dead ends: 16309 [2022-11-20 11:07:41,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:41,396 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 2190 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 6783 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:41,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 6783 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:07:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-20 11:07:43,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16309. [2022-11-20 11:07:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16309 states, 11034 states have (on average 1.2289287656334964) internal successors, (13560), 11360 states have internal predecessors, (13560), 4220 states have call successors, (4220), 1073 states have call predecessors, (4220), 1052 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-20 11:07:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16309 states to 16309 states and 22038 transitions. [2022-11-20 11:07:43,254 INFO L78 Accepts]: Start accepts. Automaton has 16309 states and 22038 transitions. Word has length 172 [2022-11-20 11:07:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:43,254 INFO L495 AbstractCegarLoop]: Abstraction has 16309 states and 22038 transitions. [2022-11-20 11:07:43,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-20 11:07:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 16309 states and 22038 transitions. [2022-11-20 11:07:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 11:07:43,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:43,259 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, 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 11:07:43,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:43,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:43,485 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 11:07:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1529243110, now seen corresponding path program 1 times [2022-11-20 11:07:43,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:43,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494545506] [2022-11-20 11:07:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:43,488 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 11:07:43,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:43,490 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:43,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:44,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:07:44,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-20 11:07:46,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:07:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-20 11:07:47,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:47,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494545506] [2022-11-20 11:07:47,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494545506] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:07:47,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:07:47,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:07:47,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040997820] [2022-11-20 11:07:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:47,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:07:47,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:07:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:47,525 INFO L87 Difference]: Start difference. First operand 16309 states and 22038 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:07:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:49,066 INFO L93 Difference]: Finished difference Result 16315 states and 22043 transitions. [2022-11-20 11:07:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:07:49,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-11-20 11:07:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:49,138 INFO L225 Difference]: With dead ends: 16315 [2022-11-20 11:07:49,138 INFO L226 Difference]: Without dead ends: 16313 [2022-11-20 11:07:49,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:07:49,145 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:49,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2217 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:07:49,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2022-11-20 11:07:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 16313. [2022-11-20 11:07:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 11037 states have (on average 1.2288665398206033) internal successors, (13563), 11363 states have internal predecessors, (13563), 4220 states have call successors, (4220), 1074 states have call predecessors, (4220), 1053 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-20 11:07:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 22041 transitions. [2022-11-20 11:07:50,788 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 22041 transitions. Word has length 177 [2022-11-20 11:07:50,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 16313 states and 22041 transitions. [2022-11-20 11:07:50,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:07:50,789 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 22041 transitions. [2022-11-20 11:07:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 11:07:50,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:50,795 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 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 11:07:50,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:51,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:51,011 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 11:07:51,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 445055128, now seen corresponding path program 1 times [2022-11-20 11:07:51,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:51,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518703367] [2022-11-20 11:07:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:51,014 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 11:07:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:51,016 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:51,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:52,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:07:52,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-20 11:07:54,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:07:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-20 11:07:55,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:55,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518703367] [2022-11-20 11:07:55,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518703367] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:07:55,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:07:55,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:07:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829188874] [2022-11-20 11:07:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:55,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:07:55,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:55,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:07:55,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:55,532 INFO L87 Difference]: Start difference. First operand 16313 states and 22041 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:56,789 INFO L93 Difference]: Finished difference Result 16319 states and 22046 transitions. [2022-11-20 11:07:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:07:56,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2022-11-20 11:07:56,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:56,878 INFO L225 Difference]: With dead ends: 16319 [2022-11-20 11:07:56,878 INFO L226 Difference]: Without dead ends: 16317 [2022-11-20 11:07:56,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:07:56,892 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:56,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:07:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16317 states. [2022-11-20 11:07:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16317 to 16317. [2022-11-20 11:07:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16317 states, 11040 states have (on average 1.228804347826087) internal successors, (13566), 11366 states have internal predecessors, (13566), 4220 states have call successors, (4220), 1075 states have call predecessors, (4220), 1054 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-20 11:07:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16317 states to 16317 states and 22044 transitions. [2022-11-20 11:07:58,405 INFO L78 Accepts]: Start accepts. Automaton has 16317 states and 22044 transitions. Word has length 182 [2022-11-20 11:07:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:58,406 INFO L495 AbstractCegarLoop]: Abstraction has 16317 states and 22044 transitions. [2022-11-20 11:07:58,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 16317 states and 22044 transitions. [2022-11-20 11:07:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 11:07:58,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:58,412 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:58,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:07:58,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:58,636 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 11:07:58,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:58,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1875432395, now seen corresponding path program 1 times [2022-11-20 11:07:58,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:58,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757178516] [2022-11-20 11:07:58,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:58,638 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 11:07:58,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:58,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:58,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:07:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:59,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:59,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:00,076 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-20 11:08:00,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:00,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:00,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757178516] [2022-11-20 11:08:00,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757178516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:00,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:00,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:00,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92727120] [2022-11-20 11:08:00,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:00,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:00,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:00,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:00,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:00,079 INFO L87 Difference]: Start difference. First operand 16317 states and 22044 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 11:08:02,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:02,507 INFO L93 Difference]: Finished difference Result 40430 states and 54667 transitions. [2022-11-20 11:08:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:02,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2022-11-20 11:08:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:02,619 INFO L225 Difference]: With dead ends: 40430 [2022-11-20 11:08:02,619 INFO L226 Difference]: Without dead ends: 24209 [2022-11-20 11:08:02,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 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 11:08:02,671 INFO L413 NwaCegarLoop]: 4401 mSDtfsCounter, 2151 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:02,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 6644 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:08:02,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24209 states. [2022-11-20 11:08:04,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24209 to 24175. [2022-11-20 11:08:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24175 states, 16364 states have (on average 1.228733805915424) internal successors, (20107), 16838 states have internal predecessors, (20107), 6244 states have call successors, (6244), 1593 states have call predecessors, (6244), 1564 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-20 11:08:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24175 states to 24175 states and 32654 transitions. [2022-11-20 11:08:04,982 INFO L78 Accepts]: Start accepts. Automaton has 24175 states and 32654 transitions. Word has length 199 [2022-11-20 11:08:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:04,983 INFO L495 AbstractCegarLoop]: Abstraction has 24175 states and 32654 transitions. [2022-11-20 11:08:04,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 11:08:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand 24175 states and 32654 transitions. [2022-11-20 11:08:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 11:08:04,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:04,989 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:05,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:05,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:05,203 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:08:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 241766554, now seen corresponding path program 1 times [2022-11-20 11:08:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:05,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080919884] [2022-11-20 11:08:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:05,206 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 11:08:05,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:05,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:05,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (11)] Waiting until timeout for monitored process [2022-11-20 11:08:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:06,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:08:06,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-20 11:08:08,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-20 11:08:09,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080919884] [2022-11-20 11:08:09,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080919884] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:09,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:09,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:08:09,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099826170] [2022-11-20 11:08:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:08:09,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:08:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:09,762 INFO L87 Difference]: Start difference. First operand 24175 states and 32654 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:08:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:12,419 INFO L93 Difference]: Finished difference Result 24181 states and 32659 transitions. [2022-11-20 11:08:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:08:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2022-11-20 11:08:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:12,534 INFO L225 Difference]: With dead ends: 24181 [2022-11-20 11:08:12,534 INFO L226 Difference]: Without dead ends: 24179 [2022-11-20 11:08:12,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:12,551 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:12,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:08:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24179 states. [2022-11-20 11:08:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24179 to 24179. [2022-11-20 11:08:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24179 states, 16367 states have (on average 1.228691880002444) internal successors, (20110), 16841 states have internal predecessors, (20110), 6244 states have call successors, (6244), 1594 states have call predecessors, (6244), 1565 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-20 11:08:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24179 states to 24179 states and 32657 transitions. [2022-11-20 11:08:15,407 INFO L78 Accepts]: Start accepts. Automaton has 24179 states and 32657 transitions. Word has length 187 [2022-11-20 11:08:15,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:15,408 INFO L495 AbstractCegarLoop]: Abstraction has 24179 states and 32657 transitions. [2022-11-20 11:08:15,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:08:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 24179 states and 32657 transitions. [2022-11-20 11:08:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 11:08:15,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:15,417 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 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, 1, 1, 1, 1] [2022-11-20 11:08:15,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:15,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:15,631 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:08:15,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:15,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1999124072, now seen corresponding path program 1 times [2022-11-20 11:08:15,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:15,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971970318] [2022-11-20 11:08:15,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:15,634 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 11:08:15,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:15,635 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:15,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (12)] Waiting until timeout for monitored process [2022-11-20 11:08:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:16,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:08:16,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:19,091 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-20 11:08:19,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-20 11:08:20,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:20,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971970318] [2022-11-20 11:08:20,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971970318] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:20,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:20,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:08:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744841629] [2022-11-20 11:08:20,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:20,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:08:20,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:08:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:20,132 INFO L87 Difference]: Start difference. First operand 24179 states and 32657 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:08:22,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:22,754 INFO L93 Difference]: Finished difference Result 24185 states and 32662 transitions. [2022-11-20 11:08:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:08:22,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-11-20 11:08:22,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:22,869 INFO L225 Difference]: With dead ends: 24185 [2022-11-20 11:08:22,869 INFO L226 Difference]: Without dead ends: 24183 [2022-11-20 11:08:22,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:22,884 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:22,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:08:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-11-20 11:08:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2022-11-20 11:08:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 16370 states have (on average 1.2286499694563224) internal successors, (20113), 16844 states have internal predecessors, (20113), 6244 states have call successors, (6244), 1595 states have call predecessors, (6244), 1566 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-20 11:08:25,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 32660 transitions. [2022-11-20 11:08:25,927 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 32660 transitions. Word has length 192 [2022-11-20 11:08:25,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:25,927 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 32660 transitions. [2022-11-20 11:08:25,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:08:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 32660 transitions. [2022-11-20 11:08:25,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 11:08:25,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:25,935 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:25,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:26,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:26,151 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:08:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:26,152 INFO L85 PathProgramCache]: Analyzing trace with hash 275257114, now seen corresponding path program 1 times [2022-11-20 11:08:26,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:26,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661618647] [2022-11-20 11:08:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:26,153 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 11:08:26,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:26,154 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:26,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (13)] Waiting until timeout for monitored process [2022-11-20 11:08:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:27,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:08:27,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-20 11:08:29,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-20 11:08:30,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:30,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661618647] [2022-11-20 11:08:30,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661618647] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:30,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:30,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:08:30,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375061352] [2022-11-20 11:08:30,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:30,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:08:30,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:30,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:08:30,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:30,606 INFO L87 Difference]: Start difference. First operand 24183 states and 32660 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:08:33,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:33,357 INFO L93 Difference]: Finished difference Result 24189 states and 32665 transitions. [2022-11-20 11:08:33,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:08:33,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-11-20 11:08:33,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:33,472 INFO L225 Difference]: With dead ends: 24189 [2022-11-20 11:08:33,472 INFO L226 Difference]: Without dead ends: 24187 [2022-11-20 11:08:33,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:33,485 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:33,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:08:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24187 states. [2022-11-20 11:08:36,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24187 to 24187. [2022-11-20 11:08:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24187 states, 16373 states have (on average 1.228608074268613) internal successors, (20116), 16847 states have internal predecessors, (20116), 6244 states have call successors, (6244), 1596 states have call predecessors, (6244), 1567 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-20 11:08:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24187 states to 24187 states and 32663 transitions. [2022-11-20 11:08:36,411 INFO L78 Accepts]: Start accepts. Automaton has 24187 states and 32663 transitions. Word has length 197 [2022-11-20 11:08:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:36,412 INFO L495 AbstractCegarLoop]: Abstraction has 24187 states and 32663 transitions. [2022-11-20 11:08:36,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:08:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 24187 states and 32663 transitions. [2022-11-20 11:08:36,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 11:08:36,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:36,417 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:36,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:36,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:36,634 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:08:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 99811992, now seen corresponding path program 1 times [2022-11-20 11:08:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:36,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924952660] [2022-11-20 11:08:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:36,636 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 11:08:36,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:36,643 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 11:08:36,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_364f1b28-492d-4fb7-ab9c-877e3b134660/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 (14)] Waiting until timeout for monitored process [2022-11-20 11:08:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:38,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:08:38,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-20 11:08:40,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-20 11:08:41,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:41,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924952660] [2022-11-20 11:08:41,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924952660] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:41,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:41,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:08:41,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692923798] [2022-11-20 11:08:41,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:41,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:08:41,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:41,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:08:41,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:41,498 INFO L87 Difference]: Start difference. First operand 24187 states and 32663 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)