./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- 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 20:16:33,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:16:33,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:16:33,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:16:33,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:16:33,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:16:33,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:16:33,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:16:33,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:16:33,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:16:33,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:16:33,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:16:33,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:16:33,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:16:33,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:16:33,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:16:33,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:16:33,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:16:33,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:16:33,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:16:33,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:16:33,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:16:33,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:16:33,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:16:33,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:16:33,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:16:33,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:16:33,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:16:33,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:16:33,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:16:33,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:16:33,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:16:33,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:16:33,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:16:33,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:16:33,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:16:33,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:16:33,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:16:33,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:16:33,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:16:33,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:16:33,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:16:33,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:16:33,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:16:33,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:16:33,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:16:33,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:16:33,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:16:33,424 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:16:33,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:16:33,425 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:16:33,426 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:16:33,426 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:16:33,426 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:16:33,426 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:16:33,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:16:33,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:16:33,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:16:33,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:16:33,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:16:33,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:16:33,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:16:33,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:16:33,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:16:33,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:16:33,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:16:33,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:16:33,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:16:33,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:16:33,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:16:33,431 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_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-20 20:16:33,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:16:33,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:16:33,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:16:33,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:16:33,778 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:16:33,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 20:16:37,173 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:16:37,943 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:16:37,944 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 20:16:38,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/291716842/b1ddcdf24d3f44c59488606c7e8478e4/FLAGaabddfcca [2022-11-20 20:16:38,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/291716842/b1ddcdf24d3f44c59488606c7e8478e4 [2022-11-20 20:16:38,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:16:38,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:16:38,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:16:38,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:16:38,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:16:38,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:16:38" (1/1) ... [2022-11-20 20:16:38,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c0f620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:38, skipping insertion in model container [2022-11-20 20:16:38,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:16:38" (1/1) ... [2022-11-20 20:16:38,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:16:38,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:16:38,933 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 20:16:38,944 INFO L158 Benchmark]: Toolchain (without parser) took 903.28ms. Allocated memory is still 134.2MB. Free memory was 75.5MB in the beginning and 64.0MB in the end (delta: 11.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 20:16:38,945 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:16:38,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 900.55ms. Allocated memory is still 134.2MB. Free memory was 75.5MB in the beginning and 64.0MB in the end (delta: 11.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 20:16:38,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 900.55ms. Allocated memory is still 134.2MB. Free memory was 75.5MB in the beginning and 64.0MB in the end (delta: 11.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- 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 20:16:41,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:16:41,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:16:41,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:16:41,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:16:41,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:16:41,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:16:41,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:16:41,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:16:41,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:16:41,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:16:41,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:16:41,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:16:41,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:16:41,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:16:41,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:16:41,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:16:41,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:16:41,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:16:41,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:16:41,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:16:41,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:16:41,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:16:41,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:16:41,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:16:41,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:16:41,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:16:41,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:16:41,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:16:41,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:16:41,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:16:41,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:16:41,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:16:41,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:16:41,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:16:41,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:16:41,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:16:41,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:16:41,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:16:41,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:16:41,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:16:41,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:16:41,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:16:41,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:16:41,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:16:41,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:16:41,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:16:41,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:16:41,918 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:16:41,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:16:41,918 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:16:41,919 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:16:41,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:16:41,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:16:41,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:16:41,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:16:41,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:16:41,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:16:41,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:16:41,921 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:16:41,922 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:16:41,922 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:16:41,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:16:41,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:16:41,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:16:41,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:16:41,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:16:41,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:16:41,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:16:41,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:16:41,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:16:41,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:16:41,925 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:16:41,925 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:16:41,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:16:41,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:16:41,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:16:41,926 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_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-20 20:16:42,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:16:42,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:16:42,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:16:42,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:16:42,342 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:16:42,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 20:16:45,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:16:46,551 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:16:46,552 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 20:16:46,620 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/9de0ca41e/c96403d57e16442c95e52e68289138a5/FLAGb148465e4 [2022-11-20 20:16:46,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/data/9de0ca41e/c96403d57e16442c95e52e68289138a5 [2022-11-20 20:16:46,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:16:46,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:16:46,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:16:46,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:16:46,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:16:46,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:16:46" (1/1) ... [2022-11-20 20:16:46,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a0e598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:46, skipping insertion in model container [2022-11-20 20:16:46,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:16:46" (1/1) ... [2022-11-20 20:16:46,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:16:46,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:16:50,009 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 20:16:50,013 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 20:16:50,014 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 20:16:50,015 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 20:16:50,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:16:50,081 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:16:50,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:16:50,734 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 20:16:50,735 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 20:16:50,736 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 20:16:50,736 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 20:16:50,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:16:50,783 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:16:51,231 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 20:16:51,232 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 20:16:51,233 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 20:16:51,234 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_df736025-361a-4abf-a645-d9edfc98204e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 20:16:51,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:16:51,439 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:16:51,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51 WrapperNode [2022-11-20 20:16:51,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:16:51,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:16:51,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:16:51,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:16:51,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,753 INFO L138 Inliner]: procedures = 441, calls = 1759, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4489 [2022-11-20 20:16:51,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:16:51,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:16:51,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:16:51,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:16:51,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:51,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:52,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:52,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:16:52,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:16:52,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:16:52,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:16:52,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (1/1) ... [2022-11-20 20:16:52,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:16:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:16:52,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:16:52,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:16:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 20:16:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 20:16:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 20:16:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 20:16:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:16:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:16:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-20 20:16:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-20 20:16:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 20:16:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 20:16:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:16:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:16:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-20 20:16:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-20 20:16:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-20 20:16:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-20 20:16:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:16:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:16:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 20:16:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 20:16:52,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:16:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:16:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 20:16:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:16:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:16:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:16:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:16:52,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 20:16:52,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 20:16:52,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:16:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:16:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 20:16:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 20:16:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:16:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:16:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 20:16:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 20:16:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-20 20:16:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-20 20:16:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 20:16:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 20:16:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-20 20:16:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-20 20:16:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 20:16:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 20:16:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 20:16:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 20:16:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-20 20:16:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-20 20:16:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:16:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:16:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 20:16:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 20:16:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:16:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:16:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 20:16:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 20:16:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:16:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:16:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:16:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:16:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 20:16:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 20:16:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:16:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:16:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:16:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:16:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:16:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:16:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:16:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:16:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:16:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:16:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:16:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:16:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:16:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:16:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:16:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:16:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 20:16:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 20:16:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-20 20:16:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-20 20:16:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:16:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:16:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 20:16:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 20:16:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 20:16:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 20:16:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 20:16:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 20:16:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 20:16:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 20:16:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:16:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:16:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:16:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 20:16:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 20:16:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:16:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:16:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:16:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:16:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:16:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:16:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:16:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:16:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:16:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:16:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 20:16:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 20:16:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-20 20:16:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-20 20:16:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 20:16:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 20:16:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:16:52,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:16:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 20:16:52,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 20:16:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 20:16:52,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 20:16:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-20 20:16:52,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-20 20:16:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 20:16:52,270 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 20:16:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 20:16:52,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 20:16:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:16:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-20 20:16:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-20 20:16:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:16:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 20:16:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 20:16:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:16:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:16:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:16:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:16:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:16:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 20:16:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 20:16:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 20:16:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 20:16:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 20:16:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 20:16:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:16:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:16:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 20:16:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 20:16:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 20:16:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 20:16:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:16:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:16:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:16:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:16:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:16:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-20 20:16:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-20 20:16:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-20 20:16:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-20 20:16:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:16:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:16:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 20:16:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 20:16:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 20:16:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 20:16:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:16:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:16:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-20 20:16:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-20 20:16:53,374 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:16:53,378 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:16:53,604 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:17:23,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:17:23,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:17:23,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:17:23,248 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:17:23,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:17:23 BoogieIcfgContainer [2022-11-20 20:17:23,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:17:23,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:17:23,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:17:23,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:17:23,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:16:46" (1/3) ... [2022-11-20 20:17:23,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d7d0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:17:23, skipping insertion in model container [2022-11-20 20:17:23,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:16:51" (2/3) ... [2022-11-20 20:17:23,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d7d0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:17:23, skipping insertion in model container [2022-11-20 20:17:23,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:17:23" (3/3) ... [2022-11-20 20:17:23,264 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 20:17:23,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:17:23,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 20:17:23,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:17:23,384 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=FINITE_AUTOMATA, 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;@771d21c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:17:23,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 20:17:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 1555 states, 1013 states have (on average 1.2537018756169793) internal successors, (1270), 1038 states have internal predecessors, (1270), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-11-20 20:17:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 20:17:23,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:23,416 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:23,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash -783949461, now seen corresponding path program 1 times [2022-11-20 20:17:23,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:23,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32715866] [2022-11-20 20:17:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:23,444 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 20:17:23,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:23,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:23,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:24,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:24,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 20:17:24,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:24,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:24,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32715866] [2022-11-20 20:17:24,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32715866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:24,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:24,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791117954] [2022-11-20 20:17:24,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:24,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:24,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:24,753 INFO L87 Difference]: Start difference. First operand has 1555 states, 1013 states have (on average 1.2537018756169793) internal successors, (1270), 1038 states have internal predecessors, (1270), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 20:17:25,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:25,290 INFO L93 Difference]: Finished difference Result 4528 states and 6545 transitions. [2022-11-20 20:17:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:25,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2022-11-20 20:17:25,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:25,329 INFO L225 Difference]: With dead ends: 4528 [2022-11-20 20:17:25,329 INFO L226 Difference]: Without dead ends: 2982 [2022-11-20 20:17:25,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 20:17:25,347 INFO L413 NwaCegarLoop]: 2617 mSDtfsCounter, 2052 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:25,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 4747 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:17:25,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-11-20 20:17:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2978. [2022-11-20 20:17:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 1955 states have (on average 1.2398976982097187) internal successors, (2424), 2004 states have internal predecessors, (2424), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-11-20 20:17:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4188 transitions. [2022-11-20 20:17:25,702 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4188 transitions. Word has length 105 [2022-11-20 20:17:25,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:25,703 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4188 transitions. [2022-11-20 20:17:25,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 20:17:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4188 transitions. [2022-11-20 20:17:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 20:17:25,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:25,717 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:25,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:25,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:25,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash -323473517, now seen corresponding path program 1 times [2022-11-20 20:17:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:25,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327350208] [2022-11-20 20:17:25,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:25,939 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 20:17:25,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:25,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:25,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:27,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:27,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 20:17:27,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:27,092 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:27,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327350208] [2022-11-20 20:17:27,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327350208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:27,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:27,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332197433] [2022-11-20 20:17:27,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:27,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:27,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:27,095 INFO L87 Difference]: Start difference. First operand 2978 states and 4188 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:17:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:27,633 INFO L93 Difference]: Finished difference Result 8370 states and 11774 transitions. [2022-11-20 20:17:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:27,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-11-20 20:17:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:27,674 INFO L225 Difference]: With dead ends: 8370 [2022-11-20 20:17:27,674 INFO L226 Difference]: Without dead ends: 5411 [2022-11-20 20:17:27,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 20:17:27,692 INFO L413 NwaCegarLoop]: 2579 mSDtfsCounter, 1799 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 4685 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:27,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 4685 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:17:27,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2022-11-20 20:17:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 5379. [2022-11-20 20:17:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 3500 states have (on average 1.2362857142857142) internal successors, (4327), 3576 states have internal predecessors, (4327), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 263 states have return successors, (1621), 1568 states have call predecessors, (1621), 1609 states have call successors, (1621) [2022-11-20 20:17:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 7561 transitions. [2022-11-20 20:17:28,206 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 7561 transitions. Word has length 113 [2022-11-20 20:17:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:28,207 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 7561 transitions. [2022-11-20 20:17:28,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:17:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 7561 transitions. [2022-11-20 20:17:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 20:17:28,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:28,210 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:28,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:28,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:28,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:28,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:28,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1427770684, now seen corresponding path program 1 times [2022-11-20 20:17:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:28,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394212514] [2022-11-20 20:17:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:28,435 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 20:17:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:28,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:28,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:29,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:29,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 20:17:29,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:29,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:29,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394212514] [2022-11-20 20:17:29,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394212514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:29,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:29,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:29,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291991276] [2022-11-20 20:17:29,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:29,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:29,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:29,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:29,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:29,464 INFO L87 Difference]: Start difference. First operand 5379 states and 7561 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 20:17:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:30,148 INFO L93 Difference]: Finished difference Result 10725 states and 15077 transitions. [2022-11-20 20:17:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:30,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-11-20 20:17:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:30,186 INFO L225 Difference]: With dead ends: 10725 [2022-11-20 20:17:30,186 INFO L226 Difference]: Without dead ends: 5365 [2022-11-20 20:17:30,211 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 20:17:30,212 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 1459 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:30,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 4677 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:17:30,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2022-11-20 20:17:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5335. [2022-11-20 20:17:30,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3436 states have (on average 1.230791618160652) internal successors, (4229), 3512 states have internal predecessors, (4229), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 285 states have return successors, (1613), 1565 states have call predecessors, (1613), 1607 states have call successors, (1613) [2022-11-20 20:17:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7453 transitions. [2022-11-20 20:17:30,788 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7453 transitions. Word has length 116 [2022-11-20 20:17:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:30,789 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 7453 transitions. [2022-11-20 20:17:30,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 20:17:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7453 transitions. [2022-11-20 20:17:30,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 20:17:30,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:30,792 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, 1, 1, 1, 1, 1] [2022-11-20 20:17:30,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:31,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:31,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:31,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1075495354, now seen corresponding path program 1 times [2022-11-20 20:17:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:31,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125173066] [2022-11-20 20:17:31,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:31,016 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 20:17:31,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:31,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:31,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:32,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:32,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 20:17:32,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:32,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:32,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125173066] [2022-11-20 20:17:32,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125173066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:32,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:32,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:32,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655702359] [2022-11-20 20:17:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:32,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:32,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:32,214 INFO L87 Difference]: Start difference. First operand 5335 states and 7453 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 20:17:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:32,972 INFO L93 Difference]: Finished difference Result 14020 states and 19569 transitions. [2022-11-20 20:17:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:32,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 133 [2022-11-20 20:17:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:33,026 INFO L225 Difference]: With dead ends: 14020 [2022-11-20 20:17:33,027 INFO L226 Difference]: Without dead ends: 8704 [2022-11-20 20:17:33,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 20:17:33,051 INFO L413 NwaCegarLoop]: 2561 mSDtfsCounter, 1809 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:33,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 4664 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:17:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2022-11-20 20:17:33,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 8673. [2022-11-20 20:17:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 5563 states have (on average 1.2236203487326982) internal successors, (6807), 5700 states have internal predecessors, (6807), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 477 states have return successors, (2638), 2533 states have call predecessors, (2638), 2626 states have call successors, (2638) [2022-11-20 20:17:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12075 transitions. [2022-11-20 20:17:33,792 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12075 transitions. Word has length 133 [2022-11-20 20:17:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:33,794 INFO L495 AbstractCegarLoop]: Abstraction has 8673 states and 12075 transitions. [2022-11-20 20:17:33,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 20:17:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12075 transitions. [2022-11-20 20:17:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 20:17:33,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:33,801 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:17:33,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:34,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:34,025 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:34,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash 527850235, now seen corresponding path program 1 times [2022-11-20 20:17:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:34,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213195463] [2022-11-20 20:17:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:34,027 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 20:17:34,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:34,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:34,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:35,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:35,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 20:17:35,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:35,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:35,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213195463] [2022-11-20 20:17:35,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213195463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:35,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:35,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:35,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872058721] [2022-11-20 20:17:35,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:35,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:35,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:35,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:35,244 INFO L87 Difference]: Start difference. First operand 8673 states and 12075 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:17:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:36,418 INFO L93 Difference]: Finished difference Result 23985 states and 33295 transitions. [2022-11-20 20:17:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2022-11-20 20:17:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:36,505 INFO L225 Difference]: With dead ends: 23985 [2022-11-20 20:17:36,505 INFO L226 Difference]: Without dead ends: 15331 [2022-11-20 20:17:36,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 20:17:36,539 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 2081 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 5053 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:36,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 5053 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:17:36,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2022-11-20 20:17:37,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 15290. [2022-11-20 20:17:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15290 states, 10023 states have (on average 1.2283747381023646) internal successors, (12312), 10299 states have internal predecessors, (12312), 4420 states have call successors, (4420), 873 states have call predecessors, (4420), 844 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-20 20:17:37,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15290 states to 15290 states and 21176 transitions. [2022-11-20 20:17:37,808 INFO L78 Accepts]: Start accepts. Automaton has 15290 states and 21176 transitions. Word has length 144 [2022-11-20 20:17:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:37,809 INFO L495 AbstractCegarLoop]: Abstraction has 15290 states and 21176 transitions. [2022-11-20 20:17:37,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:17:37,809 INFO L276 IsEmpty]: Start isEmpty. Operand 15290 states and 21176 transitions. [2022-11-20 20:17:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 20:17:37,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:37,812 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 20:17:37,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:38,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:38,025 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:38,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash -523094357, now seen corresponding path program 1 times [2022-11-20 20:17:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:38,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323168074] [2022-11-20 20:17:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:38,027 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 20:17:38,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:38,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:38,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:38,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:38,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-20 20:17:39,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:39,067 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:39,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323168074] [2022-11-20 20:17:39,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323168074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:39,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:39,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817599576] [2022-11-20 20:17:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:39,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:39,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:39,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:39,070 INFO L87 Difference]: Start difference. First operand 15290 states and 21176 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:17:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:40,850 INFO L93 Difference]: Finished difference Result 43762 states and 60719 transitions. [2022-11-20 20:17:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-20 20:17:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:41,006 INFO L225 Difference]: With dead ends: 43762 [2022-11-20 20:17:41,006 INFO L226 Difference]: Without dead ends: 29030 [2022-11-20 20:17:41,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 20:17:41,062 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2016 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 5649 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:17:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29030 states. [2022-11-20 20:17:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29030 to 29026. [2022-11-20 20:17:43,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29026 states, 19059 states have (on average 1.228868251219896) internal successors, (23421), 19551 states have internal predecessors, (23421), 8367 states have call successors, (8367), 1646 states have call predecessors, (8367), 1597 states have return successors, (8419), 8013 states have call predecessors, (8419), 8363 states have call successors, (8419) [2022-11-20 20:17:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29026 states to 29026 states and 40207 transitions. [2022-11-20 20:17:43,540 INFO L78 Accepts]: Start accepts. Automaton has 29026 states and 40207 transitions. Word has length 161 [2022-11-20 20:17:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:43,541 INFO L495 AbstractCegarLoop]: Abstraction has 29026 states and 40207 transitions. [2022-11-20 20:17:43,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:17:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 29026 states and 40207 transitions. [2022-11-20 20:17:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 20:17:43,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:43,544 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 20:17:43,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:43,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:43,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash -382545747, now seen corresponding path program 1 times [2022-11-20 20:17:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:43,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740325666] [2022-11-20 20:17:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:43,765 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 20:17:43,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:43,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:43,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:44,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:17:44,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 20:17:45,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:45,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:45,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740325666] [2022-11-20 20:17:45,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740325666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:45,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:45,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:17:45,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699357637] [2022-11-20 20:17:45,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:45,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:17:45,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:17:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:17:45,512 INFO L87 Difference]: Start difference. First operand 29026 states and 40207 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:17:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:47,554 INFO L93 Difference]: Finished difference Result 29032 states and 40212 transitions. [2022-11-20 20:17:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:17:47,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2022-11-20 20:17:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:47,714 INFO L225 Difference]: With dead ends: 29032 [2022-11-20 20:17:47,714 INFO L226 Difference]: Without dead ends: 29030 [2022-11-20 20:17:47,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:17:47,733 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2091 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 6474 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:47,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 6474 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:17:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29030 states. [2022-11-20 20:17:49,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29030 to 29030. [2022-11-20 20:17:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29030 states, 19062 states have (on average 1.2288322316650928) internal successors, (23424), 19554 states have internal predecessors, (23424), 8367 states have call successors, (8367), 1647 states have call predecessors, (8367), 1598 states have return successors, (8419), 8013 states have call predecessors, (8419), 8363 states have call successors, (8419) [2022-11-20 20:17:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29030 states to 29030 states and 40210 transitions. [2022-11-20 20:17:50,145 INFO L78 Accepts]: Start accepts. Automaton has 29030 states and 40210 transitions. Word has length 161 [2022-11-20 20:17:50,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:17:50,146 INFO L495 AbstractCegarLoop]: Abstraction has 29030 states and 40210 transitions. [2022-11-20 20:17:50,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:17:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 29030 states and 40210 transitions. [2022-11-20 20:17:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 20:17:50,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:17:50,150 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 20:17:50,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:50,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:50,365 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:17:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:17:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 982335807, now seen corresponding path program 1 times [2022-11-20 20:17:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:17:50,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815205190] [2022-11-20 20:17:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:17:50,367 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 20:17:50,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:17:50,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:50,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:17:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:17:51,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:17:51,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:17:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 20:17:51,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:17:51,477 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:17:51,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815205190] [2022-11-20 20:17:51,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815205190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:17:51,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:17:51,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:17:51,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199144737] [2022-11-20 20:17:51,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:17:51,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:17:51,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:17:51,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:17:51,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:51,479 INFO L87 Difference]: Start difference. First operand 29030 states and 40210 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 20:17:55,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:17:55,162 INFO L93 Difference]: Finished difference Result 85854 states and 118995 transitions. [2022-11-20 20:17:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:17:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-20 20:17:55,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:17:55,438 INFO L225 Difference]: With dead ends: 85854 [2022-11-20 20:17:55,438 INFO L226 Difference]: Without dead ends: 56843 [2022-11-20 20:17:55,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:17:55,545 INFO L413 NwaCegarLoop]: 2930 mSDtfsCounter, 2114 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:17:55,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 5082 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:17:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56843 states. [2022-11-20 20:18:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56843 to 56779. [2022-11-20 20:18:00,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56779 states, 37292 states have (on average 1.228520862383353) internal successors, (45814), 38286 states have internal predecessors, (45814), 16358 states have call successors, (16358), 3223 states have call predecessors, (16358), 3126 states have return successors, (16466), 15637 states have call predecessors, (16466), 16354 states have call successors, (16466) [2022-11-20 20:18:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56779 states to 56779 states and 78638 transitions. [2022-11-20 20:18:00,571 INFO L78 Accepts]: Start accepts. Automaton has 56779 states and 78638 transitions. Word has length 167 [2022-11-20 20:18:00,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:18:00,571 INFO L495 AbstractCegarLoop]: Abstraction has 56779 states and 78638 transitions. [2022-11-20 20:18:00,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 20:18:00,572 INFO L276 IsEmpty]: Start isEmpty. Operand 56779 states and 78638 transitions. [2022-11-20 20:18:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 20:18:00,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:18:00,575 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 20:18:00,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:18:00,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:18:00,792 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:18:00,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:18:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1165937546, now seen corresponding path program 1 times [2022-11-20 20:18:00,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:18:00,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649914670] [2022-11-20 20:18:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:18:00,794 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 20:18:00,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:18:00,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:18:00,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df736025-361a-4abf-a645-d9edfc98204e/bin/utaipan-6cKwYrpEi9/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 20:18:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:18:01,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:18:01,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:18:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 20:18:02,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:18:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 20:18:02,878 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:18:02,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649914670] [2022-11-20 20:18:02,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649914670] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:18:02,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:18:02,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 20:18:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362350116] [2022-11-20 20:18:02,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:18:02,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:18:02,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:18:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:18:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:18:02,880 INFO L87 Difference]: Start difference. First operand 56779 states and 78638 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 20:18:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:18:07,087 INFO L93 Difference]: Finished difference Result 56785 states and 78643 transitions. [2022-11-20 20:18:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:18:07,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2022-11-20 20:18:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:18:07,431 INFO L225 Difference]: With dead ends: 56785 [2022-11-20 20:18:07,431 INFO L226 Difference]: Without dead ends: 56783 [2022-11-20 20:18:07,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:18:07,455 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 2104 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:18:07,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 6476 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:18:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56783 states.