./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-mutex_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_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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_45c97698-b4e4-49c7-b301-43016994aeea/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:44:41,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:44:41,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:44:41,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:44:41,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:44:41,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:44:41,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:44:41,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:44:41,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:44:41,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:44:41,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:44:41,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:44:41,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:44:41,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:44:41,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:44:41,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:44:41,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:44:42,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:44:42,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:44:42,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:44:42,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:44:42,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:44:42,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:44:42,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:44:42,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:44:42,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:44:42,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:44:42,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:44:42,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:44:42,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:44:42,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:44:42,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:44:42,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:44:42,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:44:42,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:44:42,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:44:42,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:44:42,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:44:42,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:44:42,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:44:42,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:44:42,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:44:42,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:44:42,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:44:42,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:44:42,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:44:42,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:44:42,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:44:42,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:44:42,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:44:42,078 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:44:42,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:44:42,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:44:42,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:44:42,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:44:42,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:44:42,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:44:42,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:44:42,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:44:42,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:44:42,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:44:42,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:44:42,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:44:42,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:44:42,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:44:42,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:44:42,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:44:42,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:44:42,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:44:42,083 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:44:42,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:44:42,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:44:42,085 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_45c97698-b4e4-49c7-b301-43016994aeea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-20 12:44:42,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:44:42,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:44:42,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:44:42,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:44:42,440 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:44:42,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 12:44:45,585 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:44:46,104 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:44:46,104 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 12:44:46,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/2924219ca/093fdc0bc2c4449e902a409017be9ccf/FLAG8b75c032d [2022-11-20 12:44:46,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/2924219ca/093fdc0bc2c4449e902a409017be9ccf [2022-11-20 12:44:46,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:44:46,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:44:46,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:44:46,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:44:46,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:44:46,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:46" (1/1) ... [2022-11-20 12:44:46,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea9de7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:46, skipping insertion in model container [2022-11-20 12:44:46,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:46" (1/1) ... [2022-11-20 12:44:46,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:44:46,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:44:47,033 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 12:44:47,039 INFO L158 Benchmark]: Toolchain (without parser) took 854.60ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 86.1MB in the beginning and 122.1MB in the end (delta: -36.0MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-11-20 12:44:47,040 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:44:47,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 851.24ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 86.1MB in the beginning and 122.1MB in the end (delta: -36.0MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-11-20 12:44:47,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 851.24ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 86.1MB in the beginning and 122.1MB in the end (delta: -36.0MB). Peak memory consumption was 26.9MB. 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_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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_45c97698-b4e4-49c7-b301-43016994aeea/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:44:49,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:44:49,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:44:49,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:44:49,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:44:49,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:44:49,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:44:49,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:44:49,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:44:49,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:44:49,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:44:49,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:44:49,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:44:49,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:44:49,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:44:49,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:44:49,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:44:49,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:44:49,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:44:49,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:44:49,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:44:49,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:44:49,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:44:49,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:44:49,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:44:49,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:44:49,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:44:49,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:44:49,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:44:49,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:44:49,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:44:49,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:44:49,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:44:49,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:44:49,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:44:49,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:44:49,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:44:49,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:44:49,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:44:49,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:44:49,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:44:49,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:44:49,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:44:49,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:44:49,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:44:49,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:44:49,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:44:49,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:44:49,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:44:49,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:44:49,369 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:44:49,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:44:49,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:44:49,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:44:49,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:44:49,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:44:49,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:44:49,371 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:44:49,372 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:44:49,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:44:49,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:44:49,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:44:49,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:44:49,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:44:49,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:44:49,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:44:49,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:44:49,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:44:49,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:44:49,374 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:44:49,374 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:44:49,374 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:44:49,374 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:44:49,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:44:49,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:44:49,375 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_45c97698-b4e4-49c7-b301-43016994aeea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-20 12:44:49,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:44:49,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:44:49,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:44:49,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:44:49,764 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:44:49,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 12:44:52,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:44:53,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:44:53,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 12:44:53,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/3873e73d4/b7f7b7b2ca0c48c2b00d6f6002d74461/FLAG17177da8b [2022-11-20 12:44:53,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/data/3873e73d4/b7f7b7b2ca0c48c2b00d6f6002d74461 [2022-11-20 12:44:53,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:44:53,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:44:53,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:44:53,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:44:53,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:44:53,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:53" (1/1) ... [2022-11-20 12:44:53,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180336a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:53, skipping insertion in model container [2022-11-20 12:44:53,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:53" (1/1) ... [2022-11-20 12:44:53,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:44:53,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:44:56,190 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-20 12:44:56,195 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-20 12:44:56,196 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-20 12:44:56,197 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-20 12:44:56,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:44:56,294 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:44:56,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:44:56,767 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-20 12:44:56,783 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-20 12:44:56,784 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-20 12:44:56,784 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-20 12:44:56,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:44:56,836 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:44:57,276 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-20 12:44:57,277 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-20 12:44:57,278 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-20 12:44:57,278 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_45c97698-b4e4-49c7-b301-43016994aeea/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-20 12:44:57,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:44:57,563 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:44:57,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57 WrapperNode [2022-11-20 12:44:57,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:44:57,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:44:57,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:44:57,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:44:57,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:57,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:57,916 INFO L138 Inliner]: procedures = 372, calls = 1567, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 3950 [2022-11-20 12:44:57,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:44:57,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:44:57,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:44:57,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:44:57,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:57,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:57,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:57,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:44:58,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:44:58,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:44:58,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:44:58,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (1/1) ... [2022-11-20 12:44:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:44:58,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:44:58,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:44:58,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:44:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-20 12:44:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-20 12:44:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:44:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:44:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 12:44:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 12:44:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:44:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:44:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:44:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:44:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:44:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:44:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:44:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:44:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-20 12:44:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-20 12:44:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:44:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:44:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:44:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:44:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:44:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:44:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-20 12:44:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-20 12:44:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:44:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:44:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 12:44:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 12:44:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-20 12:44:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-20 12:44:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:44:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:44:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:44:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:44:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 12:44:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 12:44:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-20 12:44:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-20 12:44:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 12:44:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 12:44:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 12:44:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 12:44:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:44:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:44:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 12:44:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 12:44:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 12:44:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 12:44:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-20 12:44:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-20 12:44:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-20 12:44:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-20 12:44:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:44:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:44:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-20 12:44:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-20 12:44:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:44:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 12:44:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 12:44:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-20 12:44:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-20 12:44:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:44:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:44:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:44:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 12:44:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 12:44:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 12:44:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 12:44:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:44:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:44:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:44:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:44:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 12:44:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 12:44:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-20 12:44:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-20 12:44:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 12:44:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 12:44:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:44:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-20 12:44:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-20 12:44:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:44:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:44:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:44:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:44:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-20 12:44:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-20 12:44:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:44:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:44:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-20 12:44:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-20 12:44:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:44:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:44:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:44:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:44:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 12:44:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 12:44:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 12:44:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 12:44:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:44:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:44:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-20 12:44:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-20 12:44:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-20 12:44:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-20 12:44:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-20 12:44:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-20 12:44:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:44:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:44:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 12:44:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 12:44:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 12:44:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 12:44:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 12:44:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 12:44:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:44:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:44:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:44:58,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:44:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:44:58,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:44:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:44:58,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:44:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:44:58,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:44:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:44:58,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:44:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 12:44:58,285 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 12:44:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:44:58,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:44:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 12:44:58,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 12:44:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 12:44:58,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 12:44:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 12:44:58,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 12:44:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 12:44:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 12:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:44:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-20 12:44:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-20 12:44:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:44:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:44:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-20 12:44:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-20 12:44:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-20 12:44:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-20 12:44:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-20 12:44:58,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-20 12:44:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-20 12:44:58,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-20 12:44:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:44:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-20 12:44:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-20 12:44:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:44:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:44:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:44:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:44:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-20 12:44:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-20 12:44:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:44:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:44:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:44:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:44:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:44:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:44:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:44:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-20 12:44:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-20 12:44:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:44:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 12:44:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 12:44:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:44:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:44:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:44:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-20 12:44:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-20 12:44:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 12:44:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 12:44:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:44:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:44:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-20 12:44:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-20 12:44:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 12:44:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 12:44:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:44:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:44:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:44:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:44:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:44:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:44:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-20 12:44:58,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-20 12:44:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-20 12:44:58,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-20 12:44:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 12:44:58,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 12:44:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-20 12:44:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-20 12:44:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 12:44:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 12:44:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 12:44:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:44:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-20 12:44:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-20 12:44:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:44:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:44:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-20 12:44:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-20 12:44:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 12:44:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 12:44:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:44:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:44:59,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:44:59,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:45:05,059 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:45:37,854 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:45:37,929 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:45:37,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:45:37,945 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:45:37,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:37 BoogieIcfgContainer [2022-11-20 12:45:37,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:45:37,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:45:37,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:45:37,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:45:37,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:44:53" (1/3) ... [2022-11-20 12:45:37,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7866d679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:45:37, skipping insertion in model container [2022-11-20 12:45:37,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:57" (2/3) ... [2022-11-20 12:45:37,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7866d679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:45:37, skipping insertion in model container [2022-11-20 12:45:37,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:37" (3/3) ... [2022-11-20 12:45:37,958 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-20 12:45:37,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:45:37,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:45:38,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:45:38,082 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;@758ce379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:45:38,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:45:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2022-11-20 12:45:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 12:45:38,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:38,119 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:38,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1311610959, now seen corresponding path program 1 times [2022-11-20 12:45:38,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:38,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274296989] [2022-11-20 12:45:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:38,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:38,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:38,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:38,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:45:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:39,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:39,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:45:39,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:39,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:39,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274296989] [2022-11-20 12:45:39,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274296989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:39,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:39,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411088391] [2022-11-20 12:45:39,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:39,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:39,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:39,725 INFO L87 Difference]: Start difference. First operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:40,458 INFO L93 Difference]: Finished difference Result 4804 states and 6757 transitions. [2022-11-20 12:45:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-11-20 12:45:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:40,506 INFO L225 Difference]: With dead ends: 4804 [2022-11-20 12:45:40,506 INFO L226 Difference]: Without dead ends: 3167 [2022-11-20 12:45:40,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:40,532 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 2134 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 4855 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 12:45:40,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 4855 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:45:40,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-11-20 12:45:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3163. [2022-11-20 12:45:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2138 states have (on average 1.244621141253508) internal successors, (2661), 2205 states have internal predecessors, (2661), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2022-11-20 12:45:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4333 transitions. [2022-11-20 12:45:40,832 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4333 transitions. Word has length 116 [2022-11-20 12:45:40,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:40,833 INFO L495 AbstractCegarLoop]: Abstraction has 3163 states and 4333 transitions. [2022-11-20 12:45:40,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4333 transitions. [2022-11-20 12:45:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 12:45:40,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:40,846 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:40,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:41,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:41,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash -923209008, now seen corresponding path program 1 times [2022-11-20 12:45:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:41,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146121665] [2022-11-20 12:45:41,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:41,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:41,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:41,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:45:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:42,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:42,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:45:42,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:42,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:42,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146121665] [2022-11-20 12:45:42,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146121665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:42,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:42,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51133072] [2022-11-20 12:45:42,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:42,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:42,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:42,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:42,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:42,346 INFO L87 Difference]: Start difference. First operand 3163 states and 4333 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:43,211 INFO L93 Difference]: Finished difference Result 9145 states and 12523 transitions. [2022-11-20 12:45:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:43,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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 117 [2022-11-20 12:45:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:43,258 INFO L225 Difference]: With dead ends: 9145 [2022-11-20 12:45:43,258 INFO L226 Difference]: Without dead ends: 6003 [2022-11-20 12:45:43,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:43,273 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 1994 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 4795 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 12:45:43,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 4795 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:45:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2022-11-20 12:45:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 5982. [2022-11-20 12:45:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 4019 states have (on average 1.2430952973376461) internal successors, (4996), 4149 states have internal predecessors, (4996), 1597 states have call successors, (1597), 366 states have call predecessors, (1597), 363 states have return successors, (1595), 1572 states have call predecessors, (1595), 1593 states have call successors, (1595) [2022-11-20 12:45:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8188 transitions. [2022-11-20 12:45:43,725 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8188 transitions. Word has length 117 [2022-11-20 12:45:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:43,726 INFO L495 AbstractCegarLoop]: Abstraction has 5982 states and 8188 transitions. [2022-11-20 12:45:43,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8188 transitions. [2022-11-20 12:45:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 12:45:43,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:43,729 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:43,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:43,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:43,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1781401119, now seen corresponding path program 1 times [2022-11-20 12:45:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:43,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344821045] [2022-11-20 12:45:43,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:43,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:43,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:45:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:45,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:45,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:45:45,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:45,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:45,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344821045] [2022-11-20 12:45:45,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344821045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:45,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:45,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:45,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59396656] [2022-11-20 12:45:45,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:45,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:45,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:45,286 INFO L87 Difference]: Start difference. First operand 5982 states and 8188 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:46,208 INFO L93 Difference]: Finished difference Result 11704 states and 16048 transitions. [2022-11-20 12:45:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:46,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-20 12:45:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:46,242 INFO L225 Difference]: With dead ends: 11704 [2022-11-20 12:45:46,242 INFO L226 Difference]: Without dead ends: 5743 [2022-11-20 12:45:46,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:46,267 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 1586 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 5214 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 12:45:46,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 5214 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:45:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2022-11-20 12:45:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5724. [2022-11-20 12:45:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 3877 states have (on average 1.2470982718596852) internal successors, (4835), 4003 states have internal predecessors, (4835), 1495 states have call successors, (1495), 353 states have call predecessors, (1495), 349 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2022-11-20 12:45:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 7822 transitions. [2022-11-20 12:45:46,653 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 7822 transitions. Word has length 128 [2022-11-20 12:45:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:46,654 INFO L495 AbstractCegarLoop]: Abstraction has 5724 states and 7822 transitions. [2022-11-20 12:45:46,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:45:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 7822 transitions. [2022-11-20 12:45:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 12:45:46,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:46,659 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 12:45:46,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:46,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:46,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:46,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash -707156274, now seen corresponding path program 1 times [2022-11-20 12:45:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:46,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348895533] [2022-11-20 12:45:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:46,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:46,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:46,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:46,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:45:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:48,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:48,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-20 12:45:48,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:48,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:48,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348895533] [2022-11-20 12:45:48,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348895533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:48,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:48,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:48,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477251899] [2022-11-20 12:45:48,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:48,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:48,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:48,312 INFO L87 Difference]: Start difference. First operand 5724 states and 7822 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 12:45:49,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:49,187 INFO L93 Difference]: Finished difference Result 15457 states and 21131 transitions. [2022-11-20 12:45:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:49,188 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 12:45:49,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:49,257 INFO L225 Difference]: With dead ends: 15457 [2022-11-20 12:45:49,257 INFO L226 Difference]: Without dead ends: 10463 [2022-11-20 12:45:49,279 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 12:45:49,281 INFO L413 NwaCegarLoop]: 3431 mSDtfsCounter, 2098 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 5633 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 12:45:49,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 5633 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:45:49,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-20 12:45:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10459. [2022-11-20 12:45:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10459 states, 7093 states have (on average 1.2467221204003947) internal successors, (8843), 7315 states have internal predecessors, (8843), 2723 states have call successors, (2723), 645 states have call predecessors, (2723), 640 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-20 12:45:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 14287 transitions. [2022-11-20 12:45:50,170 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 14287 transitions. Word has length 172 [2022-11-20 12:45:50,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:50,172 INFO L495 AbstractCegarLoop]: Abstraction has 10459 states and 14287 transitions. [2022-11-20 12:45:50,173 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 12:45:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 14287 transitions. [2022-11-20 12:45:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 12:45:50,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:50,180 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 12:45:50,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:50,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:50,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:50,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -566607664, now seen corresponding path program 1 times [2022-11-20 12:45:50,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:50,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114270194] [2022-11-20 12:45:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:50,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:50,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:50,411 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:50,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:45:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:51,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:45:51,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-20 12:45:53,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:53,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:53,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114270194] [2022-11-20 12:45:53,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114270194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:53,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:53,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:45:53,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379728330] [2022-11-20 12:45:53,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:53,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:45:53,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:45:53,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:45:53,600 INFO L87 Difference]: Start difference. First operand 10459 states and 14287 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 12:45:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:54,586 INFO L93 Difference]: Finished difference Result 10465 states and 14292 transitions. [2022-11-20 12:45:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:45:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 12:45:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:54,637 INFO L225 Difference]: With dead ends: 10465 [2022-11-20 12:45:54,638 INFO L226 Difference]: Without dead ends: 10463 [2022-11-20 12:45:54,643 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 12:45:54,643 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 2151 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:54,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 6674 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:45:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-20 12:45:55,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-11-20 12:45:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7096 states have (on average 1.246617812852311) internal successors, (8846), 7318 states have internal predecessors, (8846), 2723 states have call successors, (2723), 646 states have call predecessors, (2723), 641 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-20 12:45:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14290 transitions. [2022-11-20 12:45:55,528 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14290 transitions. Word has length 172 [2022-11-20 12:45:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:55,533 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14290 transitions. [2022-11-20 12:45:55,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 12:45:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14290 transitions. [2022-11-20 12:45:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 12:45:55,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:55,541 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 12:45:55,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:55,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:55,755 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:45:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:55,756 INFO L85 PathProgramCache]: Analyzing trace with hash 910693266, now seen corresponding path program 1 times [2022-11-20 12:45:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:55,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437964424] [2022-11-20 12:45:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:55,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:55,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:55,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:55,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:45:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:56,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:45:56,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:58,701 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 12:45:58,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:45:59,655 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 12:45:59,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:59,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437964424] [2022-11-20 12:45:59,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437964424] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:45:59,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:45:59,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 12:45:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516431635] [2022-11-20 12:45:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:59,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:45:59,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:59,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:45:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:45:59,658 INFO L87 Difference]: Start difference. First operand 10463 states and 14290 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 12:46:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:00,833 INFO L93 Difference]: Finished difference Result 10469 states and 14295 transitions. [2022-11-20 12:46:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:46:00,834 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 12:46:00,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:00,879 INFO L225 Difference]: With dead ends: 10469 [2022-11-20 12:46:00,879 INFO L226 Difference]: Without dead ends: 10467 [2022-11-20 12:46:00,883 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 12:46:00,884 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2176 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 6676 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:00,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 6676 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:46:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-11-20 12:46:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10467. [2022-11-20 12:46:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10467 states, 7099 states have (on average 1.2465135934638683) internal successors, (8849), 7321 states have internal predecessors, (8849), 2723 states have call successors, (2723), 647 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-20 12:46:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10467 states to 10467 states and 14293 transitions. [2022-11-20 12:46:01,771 INFO L78 Accepts]: Start accepts. Automaton has 10467 states and 14293 transitions. Word has length 177 [2022-11-20 12:46:01,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:01,772 INFO L495 AbstractCegarLoop]: Abstraction has 10467 states and 14293 transitions. [2022-11-20 12:46:01,772 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 12:46:01,773 INFO L276 IsEmpty]: Start isEmpty. Operand 10467 states and 14293 transitions. [2022-11-20 12:46:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 12:46:01,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:01,779 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 12:46:01,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:46:01,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:01,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:01,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2093563440, now seen corresponding path program 1 times [2022-11-20 12:46:01,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:01,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290836027] [2022-11-20 12:46:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:01,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:01,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:01,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:02,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:46:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:03,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:46:03,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:05,024 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 12:46:05,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:46:05,918 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 12:46:05,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:05,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290836027] [2022-11-20 12:46:05,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290836027] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:46:05,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:46:05,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 12:46:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713344205] [2022-11-20 12:46:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:05,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:46:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:46:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:46:05,921 INFO L87 Difference]: Start difference. First operand 10467 states and 14293 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 12:46:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:07,220 INFO L93 Difference]: Finished difference Result 10473 states and 14298 transitions. [2022-11-20 12:46:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:46:07,221 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 12:46:07,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:07,268 INFO L225 Difference]: With dead ends: 10473 [2022-11-20 12:46:07,268 INFO L226 Difference]: Without dead ends: 10469 [2022-11-20 12:46:07,273 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 12:46:07,274 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2148 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:07,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 6702 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:46:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10469 states. [2022-11-20 12:46:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10469 to 10469. [2022-11-20 12:46:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 7101 states have (on average 1.2463033375580903) internal successors, (8850), 7322 states have internal predecessors, (8850), 2723 states have call successors, (2723), 648 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-20 12:46:08,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 14294 transitions. [2022-11-20 12:46:08,226 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 14294 transitions. Word has length 182 [2022-11-20 12:46:08,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:08,227 INFO L495 AbstractCegarLoop]: Abstraction has 10469 states and 14294 transitions. [2022-11-20 12:46:08,227 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 12:46:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 14294 transitions. [2022-11-20 12:46:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 12:46:08,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:08,235 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 12:46:08,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:46:08,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:08,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1882087954, now seen corresponding path program 1 times [2022-11-20 12:46:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:08,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693905979] [2022-11-20 12:46:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:08,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:08,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:08,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:08,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:46:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:09,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:46:09,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:11,743 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 12:46:11,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:46:12,651 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 12:46:12,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:12,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693905979] [2022-11-20 12:46:12,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693905979] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:46:12,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:46:12,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 12:46:12,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012747588] [2022-11-20 12:46:12,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:12,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:46:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:12,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:46:12,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:46:12,654 INFO L87 Difference]: Start difference. First operand 10469 states and 14294 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 12:46:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:13,700 INFO L93 Difference]: Finished difference Result 10469 states and 14294 transitions. [2022-11-20 12:46:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:46:13,701 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 12:46:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:13,763 INFO L225 Difference]: With dead ends: 10469 [2022-11-20 12:46:13,763 INFO L226 Difference]: Without dead ends: 10398 [2022-11-20 12:46:13,769 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 12:46:13,770 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 2172 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:13,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 6673 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:46:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-11-20 12:46:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 10398. [2022-11-20 12:46:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10398 states, 7067 states have (on average 1.2457902929107119) internal successors, (8804), 7276 states have internal predecessors, (8804), 2692 states have call successors, (2692), 639 states have call predecessors, (2692), 637 states have return successors, (2694), 2672 states have call predecessors, (2694), 2692 states have call successors, (2694) [2022-11-20 12:46:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10398 states to 10398 states and 14190 transitions. [2022-11-20 12:46:15,044 INFO L78 Accepts]: Start accepts. Automaton has 10398 states and 14190 transitions. Word has length 187 [2022-11-20 12:46:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:15,045 INFO L495 AbstractCegarLoop]: Abstraction has 10398 states and 14190 transitions. [2022-11-20 12:46:15,045 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 12:46:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 10398 states and 14190 transitions. [2022-11-20 12:46:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 12:46:15,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:15,060 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:15,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:15,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:15,275 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:15,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash -540522438, now seen corresponding path program 1 times [2022-11-20 12:46:15,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:15,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420069616] [2022-11-20 12:46:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:15,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:15,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:15,279 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:15,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:46:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:16,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:16,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:16,935 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-11-20 12:46:16,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:16,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:16,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420069616] [2022-11-20 12:46:16,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420069616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:16,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:16,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:16,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599108616] [2022-11-20 12:46:16,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:16,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:16,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:16,940 INFO L87 Difference]: Start difference. First operand 10398 states and 14190 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 12:46:18,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:18,377 INFO L93 Difference]: Finished difference Result 23826 states and 32552 transitions. [2022-11-20 12:46:18,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:18,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 192 [2022-11-20 12:46:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:18,447 INFO L225 Difference]: With dead ends: 23826 [2022-11-20 12:46:18,447 INFO L226 Difference]: Without dead ends: 14158 [2022-11-20 12:46:18,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:18,489 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 1542 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:18,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 5840 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:46:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14158 states. [2022-11-20 12:46:19,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14158 to 14152. [2022-11-20 12:46:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14152 states, 9645 states have (on average 1.2466562986003111) internal successors, (12024), 9926 states have internal predecessors, (12024), 3636 states have call successors, (3636), 871 states have call predecessors, (3636), 869 states have return successors, (3638), 3614 states have call predecessors, (3638), 3636 states have call successors, (3638) [2022-11-20 12:46:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14152 states to 14152 states and 19298 transitions. [2022-11-20 12:46:19,980 INFO L78 Accepts]: Start accepts. Automaton has 14152 states and 19298 transitions. Word has length 192 [2022-11-20 12:46:19,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:19,981 INFO L495 AbstractCegarLoop]: Abstraction has 14152 states and 19298 transitions. [2022-11-20 12:46:19,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 12:46:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 14152 states and 19298 transitions. [2022-11-20 12:46:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-20 12:46:20,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:20,001 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:20,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:20,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash -980852503, now seen corresponding path program 1 times [2022-11-20 12:46:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:20,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775440183] [2022-11-20 12:46:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:20,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:20,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:20,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:20,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:21,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:21,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:46:21,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:21,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:21,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775440183] [2022-11-20 12:46:21,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775440183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:21,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:21,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:21,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036674253] [2022-11-20 12:46:21,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:21,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:21,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:21,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:21,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:21,637 INFO L87 Difference]: Start difference. First operand 14152 states and 19298 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 12:46:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:23,339 INFO L93 Difference]: Finished difference Result 31684 states and 43202 transitions. [2022-11-20 12:46:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:23,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-20 12:46:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:23,423 INFO L225 Difference]: With dead ends: 31684 [2022-11-20 12:46:23,424 INFO L226 Difference]: Without dead ends: 18262 [2022-11-20 12:46:23,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:23,473 INFO L413 NwaCegarLoop]: 3745 mSDtfsCounter, 1922 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:23,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 5526 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:46:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18262 states. [2022-11-20 12:46:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18262 to 18256. [2022-11-20 12:46:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18256 states, 12469 states have (on average 1.246130403400433) internal successors, (15538), 12826 states have internal predecessors, (15538), 4652 states have call successors, (4652), 1135 states have call predecessors, (4652), 1133 states have return successors, (4654), 4628 states have call predecessors, (4654), 4652 states have call successors, (4654) [2022-11-20 12:46:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 24844 transitions. [2022-11-20 12:46:25,042 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 24844 transitions. Word has length 266 [2022-11-20 12:46:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:25,043 INFO L495 AbstractCegarLoop]: Abstraction has 18256 states and 24844 transitions. [2022-11-20 12:46:25,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 12:46:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 24844 transitions. [2022-11-20 12:46:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-20 12:46:25,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:25,063 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:25,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:25,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:25,376 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:25,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1640384025, now seen corresponding path program 1 times [2022-11-20 12:46:25,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:25,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433765017] [2022-11-20 12:46:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:25,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:25,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:25,379 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:25,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:26,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:26,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:46:26,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:26,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433765017] [2022-11-20 12:46:26,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433765017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:26,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:26,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447957286] [2022-11-20 12:46:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:26,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:26,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:26,795 INFO L87 Difference]: Start difference. First operand 18256 states and 24844 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 12:46:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:28,891 INFO L93 Difference]: Finished difference Result 39504 states and 53796 transitions. [2022-11-20 12:46:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:28,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-20 12:46:28,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:28,973 INFO L225 Difference]: With dead ends: 39504 [2022-11-20 12:46:28,973 INFO L226 Difference]: Without dead ends: 21978 [2022-11-20 12:46:29,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:29,024 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 1546 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:29,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5866 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:46:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21978 states. [2022-11-20 12:46:30,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21978 to 21972. [2022-11-20 12:46:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21972 states, 15023 states have (on average 1.2470212341077016) internal successors, (18734), 15452 states have internal predecessors, (18734), 5584 states have call successors, (5584), 1365 states have call predecessors, (5584), 1363 states have return successors, (5586), 5558 states have call predecessors, (5586), 5584 states have call successors, (5586) [2022-11-20 12:46:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21972 states to 21972 states and 29904 transitions. [2022-11-20 12:46:30,587 INFO L78 Accepts]: Start accepts. Automaton has 21972 states and 29904 transitions. Word has length 266 [2022-11-20 12:46:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:30,588 INFO L495 AbstractCegarLoop]: Abstraction has 21972 states and 29904 transitions. [2022-11-20 12:46:30,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 12:46:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21972 states and 29904 transitions. [2022-11-20 12:46:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-20 12:46:30,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:30,617 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:30,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:30,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:30,831 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash -377906483, now seen corresponding path program 1 times [2022-11-20 12:46:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:30,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309371376] [2022-11-20 12:46:30,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:30,834 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:30,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:32,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:32,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-20 12:46:32,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:32,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:32,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309371376] [2022-11-20 12:46:32,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309371376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:32,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:32,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:32,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554901443] [2022-11-20 12:46:32,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:32,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:32,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:32,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:32,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:32,362 INFO L87 Difference]: Start difference. First operand 21972 states and 29904 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 12:46:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:35,372 INFO L93 Difference]: Finished difference Result 46934 states and 63920 transitions. [2022-11-20 12:46:35,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:35,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-20 12:46:35,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:35,455 INFO L225 Difference]: With dead ends: 46934 [2022-11-20 12:46:35,455 INFO L226 Difference]: Without dead ends: 25692 [2022-11-20 12:46:35,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:35,508 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 1546 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:35,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5747 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:46:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2022-11-20 12:46:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 25686. [2022-11-20 12:46:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25686 states, 17577 states have (on average 1.247653183137054) internal successors, (21930), 18078 states have internal predecessors, (21930), 6516 states have call successors, (6516), 1593 states have call predecessors, (6516), 1591 states have return successors, (6518), 6488 states have call predecessors, (6518), 6516 states have call successors, (6518) [2022-11-20 12:46:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25686 states to 25686 states and 34964 transitions. [2022-11-20 12:46:37,236 INFO L78 Accepts]: Start accepts. Automaton has 25686 states and 34964 transitions. Word has length 321 [2022-11-20 12:46:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:37,237 INFO L495 AbstractCegarLoop]: Abstraction has 25686 states and 34964 transitions. [2022-11-20 12:46:37,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 12:46:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 25686 states and 34964 transitions. [2022-11-20 12:46:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-20 12:46:37,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:37,254 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:37,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:37,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:37,455 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:37,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:37,455 INFO L85 PathProgramCache]: Analyzing trace with hash 281625039, now seen corresponding path program 1 times [2022-11-20 12:46:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:37,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67699254] [2022-11-20 12:46:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:37,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:37,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:37,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:37,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 12:46:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:38,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:38,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-20 12:46:39,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:39,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:39,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67699254] [2022-11-20 12:46:39,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67699254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:39,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:39,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379205611] [2022-11-20 12:46:39,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:39,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:39,079 INFO L87 Difference]: Start difference. First operand 25686 states and 34964 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 12:46:42,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:42,012 INFO L93 Difference]: Finished difference Result 54410 states and 74100 transitions. [2022-11-20 12:46:42,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:42,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-20 12:46:42,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:42,144 INFO L225 Difference]: With dead ends: 54410 [2022-11-20 12:46:42,144 INFO L226 Difference]: Without dead ends: 29454 [2022-11-20 12:46:42,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:42,318 INFO L413 NwaCegarLoop]: 3735 mSDtfsCounter, 1559 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 5867 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:42,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 5867 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:46:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29454 states. [2022-11-20 12:46:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29454 to 29448. [2022-11-20 12:46:44,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29448 states, 20171 states have (on average 1.2480293490654901) internal successors, (25174), 20744 states have internal predecessors, (25174), 7452 states have call successors, (7452), 1825 states have call predecessors, (7452), 1823 states have return successors, (7454), 7422 states have call predecessors, (7454), 7452 states have call successors, (7454) [2022-11-20 12:46:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29448 states to 29448 states and 40080 transitions. [2022-11-20 12:46:44,757 INFO L78 Accepts]: Start accepts. Automaton has 29448 states and 40080 transitions. Word has length 321 [2022-11-20 12:46:44,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:44,758 INFO L495 AbstractCegarLoop]: Abstraction has 29448 states and 40080 transitions. [2022-11-20 12:46:44,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 12:46:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 29448 states and 40080 transitions. [2022-11-20 12:46:44,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-20 12:46:44,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:44,780 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:44,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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)] Forceful destruction successful, exit code 0 [2022-11-20 12:46:44,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:44,981 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:46:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash -171216220, now seen corresponding path program 1 times [2022-11-20 12:46:44,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:44,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934343333] [2022-11-20 12:46:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:44,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:44,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:44,985 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:44,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c97698-b4e4-49c7-b301-43016994aeea/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 (15)] Waiting until timeout for monitored process [2022-11-20 12:46:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:46,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:46:46,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2022-11-20 12:46:48,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:48,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:48,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934343333] [2022-11-20 12:46:48,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934343333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:48,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:48,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:46:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298169491] [2022-11-20 12:46:48,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:48,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:46:48,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:48,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:46:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:46:48,043 INFO L87 Difference]: Start difference. First operand 29448 states and 40080 transitions. Second operand has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33)