./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- 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 20:37:55,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:37:55,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:37:55,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:37:55,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:37:55,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:37:55,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:37:55,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:37:55,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:37:55,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:37:55,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:37:55,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:37:55,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:37:55,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:37:55,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:37:55,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:37:55,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:37:55,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:37:55,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:37:55,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:37:55,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:37:55,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:37:55,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:37:55,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:37:55,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:37:55,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:37:55,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:37:55,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:37:55,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:37:55,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:37:55,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:37:55,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:37:55,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:37:55,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:37:55,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:37:55,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:37:55,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:37:55,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:37:55,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:37:55,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:37:55,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:37:55,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:37:55,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:37:55,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:37:55,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:37:55,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:37:55,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:37:55,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:37:55,543 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:37:55,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:37:55,544 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:37:55,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:37:55,545 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:37:55,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:37:55,545 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:37:55,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:37:55,546 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:37:55,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:37:55,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:37:55,547 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:37:55,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:37:55,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:37:55,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:37:55,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:37:55,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:37:55,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:37:55,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:37:55,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:37:55,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:37:55,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:37:55,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:37:55,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:37:55,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:37:55,551 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:37:55,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:37:55,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:37:55,553 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:37:55,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:37:55,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:37:55,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:37:55,554 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-11-20 20:37:55,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:37:55,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:37:55,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:37:55,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:37:55,892 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:37:55,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 20:37:59,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:38:00,157 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:38:00,158 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 20:38:00,221 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/4cc21704a/2c663be2789048cf949a1819179a8757/FLAG5c3819bbb [2022-11-20 20:38:00,238 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/4cc21704a/2c663be2789048cf949a1819179a8757 [2022-11-20 20:38:00,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:38:00,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:38:00,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:38:00,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:38:00,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:38:00,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:00" (1/1) ... [2022-11-20 20:38:00,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3227b8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:00, skipping insertion in model container [2022-11-20 20:38:00,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:00" (1/1) ... [2022-11-20 20:38:00,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:38:00,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:38:01,109 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 20:38:01,120 INFO L158 Benchmark]: Toolchain (without parser) took 876.23ms. Allocated memory is still 190.8MB. Free memory was 143.7MB in the beginning and 130.2MB in the end (delta: 13.5MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-20 20:38:01,121 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:38:01,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.51ms. Allocated memory is still 190.8MB. Free memory was 143.7MB in the beginning and 130.2MB in the end (delta: 13.5MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-20 20:38:01,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.51ms. Allocated memory is still 190.8MB. Free memory was 143.7MB in the beginning and 130.2MB in the end (delta: 13.5MB). Peak memory consumption was 43.0MB. 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- 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 20:38:03,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:38:03,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:38:03,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:38:03,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:38:03,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:38:03,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:38:03,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:38:03,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:38:03,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:38:03,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:38:03,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:38:03,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:38:03,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:38:03,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:38:03,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:38:03,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:38:03,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:38:03,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:38:03,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:38:03,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:38:03,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:38:03,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:38:03,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:38:03,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:38:03,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:38:03,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:38:03,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:38:03,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:38:03,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:38:03,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:38:03,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:38:03,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:38:03,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:38:03,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:38:03,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:38:03,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:38:03,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:38:03,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:38:03,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:38:03,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:38:03,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:38:03,778 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:38:03,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:38:03,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:38:03,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:38:03,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:38:03,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:38:03,781 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:38:03,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:38:03,781 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:38:03,782 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:38:03,782 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:38:03,782 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:38:03,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:38:03,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:38:03,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:38:03,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:38:03,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:38:03,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:38:03,788 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:38:03,789 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:38:03,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:38:03,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:38:03,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:38:03,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:38:03,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:38:03,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:38:03,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:38:03,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:38:03,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:38:03,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:38:03,793 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:38:03,794 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:38:03,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:38:03,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:38:03,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:38:03,795 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-11-20 20:38:04,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:38:04,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:38:04,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:38:04,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:38:04,320 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:38:04,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 20:38:07,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:38:08,429 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:38:08,430 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 20:38:08,484 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/7679bb3c9/b5b51f75b89e444880cdb338e9970ffd/FLAGc16f07b10 [2022-11-20 20:38:08,501 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/data/7679bb3c9/b5b51f75b89e444880cdb338e9970ffd [2022-11-20 20:38:08,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:38:08,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:38:08,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:38:08,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:38:08,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:38:08,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:08" (1/1) ... [2022-11-20 20:38:08,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf4d544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:08, skipping insertion in model container [2022-11-20 20:38:08,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:08" (1/1) ... [2022-11-20 20:38:08,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:38:08,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:38:12,023 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 20:38:12,028 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 20:38:12,029 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 20:38:12,031 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 20:38:12,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:38:12,134 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:38:12,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:38:12,668 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 20:38:12,669 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 20:38:12,670 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 20:38:12,670 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 20:38:12,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:38:12,694 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:38:13,077 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 20:38:13,078 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 20:38:13,079 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 20:38:13,079 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_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 20:38:13,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:38:13,492 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:38:13,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13 WrapperNode [2022-11-20 20:38:13,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:38:13,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:38:13,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:38:13,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:38:13,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:13,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:13,906 INFO L138 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4857 [2022-11-20 20:38:13,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:38:13,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:38:13,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:38:13,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:38:13,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:13,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:13,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:13,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:38:14,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:38:14,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:38:14,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:38:14,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (1/1) ... [2022-11-20 20:38:14,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:38:14,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:38:14,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:38:14,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:38:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 20:38:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 20:38:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:38:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:38:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 20:38:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 20:38:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-11-20 20:38:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-11-20 20:38:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 20:38:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 20:38:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:38:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:38:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-11-20 20:38:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-11-20 20:38:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:38:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:38:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 20:38:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 20:38:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-11-20 20:38:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-11-20 20:38:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 20:38:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 20:38:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 20:38:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 20:38:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 20:38:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 20:38:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 20:38:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 20:38:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 20:38:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 20:38:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 20:38:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 20:38:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-11-20 20:38:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-11-20 20:38:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-20 20:38:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-20 20:38:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 20:38:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 20:38:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:38:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:38:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 20:38:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 20:38:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 20:38:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 20:38:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 20:38:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 20:38:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:38:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:38:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-20 20:38:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-20 20:38:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:38:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:38:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:38:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:38:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-11-20 20:38:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-11-20 20:38:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 20:38:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 20:38:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 20:38:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 20:38:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-20 20:38:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-20 20:38:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:38:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:38:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-11-20 20:38:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-11-20 20:38:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-11-20 20:38:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-11-20 20:38:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-11-20 20:38:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-11-20 20:38:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 20:38:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 20:38:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 20:38:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 20:38:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:38:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:38:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:38:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:38:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-11-20 20:38:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-11-20 20:38:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 20:38:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 20:38:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-11-20 20:38:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-11-20 20:38:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:38:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:38:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-11-20 20:38:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-11-20 20:38:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:38:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:38:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:38:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 20:38:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 20:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-11-20 20:38:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-11-20 20:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:38:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:38:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:38:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 20:38:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 20:38:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:38:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:38:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:38:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:38:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:38:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 20:38:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 20:38:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-11-20 20:38:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-11-20 20:38:14,683 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:38:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:38:14,683 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 20:38:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 20:38:14,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 20:38:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 20:38:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 20:38:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 20:38:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:38:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-11-20 20:38:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-11-20 20:38:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:38:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:38:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:38:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:38:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:38:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:38:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:38:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:38:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:38:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:38:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:38:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:38:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 20:38:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 20:38:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-11-20 20:38:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-11-20 20:38:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 20:38:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 20:38:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 20:38:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 20:38:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-20 20:38:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-20 20:38:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 20:38:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 20:38:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 20:38:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 20:38:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-11-20 20:38:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-11-20 20:38:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 20:38:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 20:38:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:38:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:38:14,690 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 20:38:14,690 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 20:38:14,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-20 20:38:14,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-20 20:38:14,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:38:14,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:38:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:38:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:38:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:38:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-11-20 20:38:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-11-20 20:38:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 20:38:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 20:38:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:38:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:38:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 20:38:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 20:38:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 20:38:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 20:38:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-11-20 20:38:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-11-20 20:38:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:38:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:38:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:38:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:38:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:38:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:38:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-11-20 20:38:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-11-20 20:38:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-11-20 20:38:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-11-20 20:38:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-20 20:38:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-20 20:38:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:38:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:38:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 20:38:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 20:38:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 20:38:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 20:38:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:38:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:38:15,733 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:38:15,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:38:18,495 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:39:04,419 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:39:04,606 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:39:04,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:39:04,627 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:39:04,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:39:04 BoogieIcfgContainer [2022-11-20 20:39:04,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:39:04,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:39:04,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:39:04,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:39:04,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:38:08" (1/3) ... [2022-11-20 20:39:04,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3676ad82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:39:04, skipping insertion in model container [2022-11-20 20:39:04,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:13" (2/3) ... [2022-11-20 20:39:04,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3676ad82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:39:04, skipping insertion in model container [2022-11-20 20:39:04,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:39:04" (3/3) ... [2022-11-20 20:39:04,647 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 20:39:04,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:39:04,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 20:39:04,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:39:04,795 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;@4d3918c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:39:04,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 20:39:04,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1181 states have (on average 1.2997459779847587) internal successors, (1535), 1204 states have internal predecessors, (1535), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-20 20:39:04,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 20:39:04,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:04,832 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:04,832 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 20:39:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 741231917, now seen corresponding path program 1 times [2022-11-20 20:39:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:04,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470806033] [2022-11-20 20:39:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:04,861 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 20:39:04,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:04,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:04,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:06,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:06,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:06,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:06,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:06,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470806033] [2022-11-20 20:39:06,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470806033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:06,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:06,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771063249] [2022-11-20 20:39:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:06,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:06,604 INFO L87 Difference]: Start difference. First operand has 1686 states, 1181 states have (on average 1.2997459779847587) internal successors, (1535), 1204 states have internal predecessors, (1535), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:07,392 INFO L93 Difference]: Finished difference Result 4903 states and 6994 transitions. [2022-11-20 20:39:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:07,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-11-20 20:39:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:07,453 INFO L225 Difference]: With dead ends: 4903 [2022-11-20 20:39:07,454 INFO L226 Difference]: Without dead ends: 3228 [2022-11-20 20:39:07,476 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 20:39:07,482 INFO L413 NwaCegarLoop]: 2744 mSDtfsCounter, 2225 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 5020 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:07,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 5020 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:39:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2022-11-20 20:39:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3224. [2022-11-20 20:39:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 2274 states have (on average 1.29155672823219) internal successors, (2937), 2319 states have internal predecessors, (2937), 787 states have call successors, (787), 161 states have call predecessors, (787), 160 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2022-11-20 20:39:07,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4507 transitions. [2022-11-20 20:39:07,914 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4507 transitions. Word has length 116 [2022-11-20 20:39:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:07,916 INFO L495 AbstractCegarLoop]: Abstraction has 3224 states and 4507 transitions. [2022-11-20 20:39:07,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4507 transitions. [2022-11-20 20:39:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 20:39:07,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:07,930 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] [2022-11-20 20:39:07,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:08,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:08,149 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 20:39:08,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:08,150 INFO L85 PathProgramCache]: Analyzing trace with hash 614587750, now seen corresponding path program 1 times [2022-11-20 20:39:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:08,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332896425] [2022-11-20 20:39:08,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:08,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:39:08,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:08,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:08,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:09,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:09,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:09,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:09,640 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:09,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332896425] [2022-11-20 20:39:09,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332896425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:09,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:09,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:09,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563914678] [2022-11-20 20:39:09,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:09,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:09,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:09,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:09,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:09,650 INFO L87 Difference]: Start difference. First operand 3224 states and 4507 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:39:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:10,351 INFO L93 Difference]: Finished difference Result 9538 states and 13351 transitions. [2022-11-20 20:39:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:10,352 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-11-20 20:39:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:10,414 INFO L225 Difference]: With dead ends: 9538 [2022-11-20 20:39:10,415 INFO L226 Difference]: Without dead ends: 6335 [2022-11-20 20:39:10,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 20:39:10,437 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 2275 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:10,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 5036 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:39:10,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2022-11-20 20:39:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 6305. [2022-11-20 20:39:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6305 states, 4463 states have (on average 1.2941967286578535) internal successors, (5776), 4557 states have internal predecessors, (5776), 1522 states have call successors, (1522), 320 states have call predecessors, (1522), 317 states have return successors, (1528), 1471 states have call predecessors, (1528), 1518 states have call successors, (1528) [2022-11-20 20:39:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 8826 transitions. [2022-11-20 20:39:10,966 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 8826 transitions. Word has length 122 [2022-11-20 20:39:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:10,967 INFO L495 AbstractCegarLoop]: Abstraction has 6305 states and 8826 transitions. [2022-11-20 20:39:10,967 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:39:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 8826 transitions. [2022-11-20 20:39:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 20:39:10,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:10,970 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] [2022-11-20 20:39:11,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:11,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:11,196 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 20:39:11,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:11,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1235054025, now seen corresponding path program 1 times [2022-11-20 20:39:11,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:11,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486554881] [2022-11-20 20:39:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:11,199 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 20:39:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:11,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:11,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:12,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:12,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:12,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:12,639 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:12,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486554881] [2022-11-20 20:39:12,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486554881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:12,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:12,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:12,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019177780] [2022-11-20 20:39:12,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:12,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:12,642 INFO L87 Difference]: Start difference. First operand 6305 states and 8826 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:39:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:13,583 INFO L93 Difference]: Finished difference Result 17963 states and 25082 transitions. [2022-11-20 20:39:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:13,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-11-20 20:39:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:13,687 INFO L225 Difference]: With dead ends: 17963 [2022-11-20 20:39:13,687 INFO L226 Difference]: Without dead ends: 11679 [2022-11-20 20:39:13,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 20:39:13,733 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 2000 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:13,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 5082 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:39:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2022-11-20 20:39:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 11645. [2022-11-20 20:39:14,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11645 states, 8247 states have (on average 1.290651145871226) internal successors, (10644), 8429 states have internal predecessors, (10644), 2784 states have call successors, (2784), 618 states have call predecessors, (2784), 611 states have return successors, (2806), 2681 states have call predecessors, (2806), 2780 states have call successors, (2806) [2022-11-20 20:39:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11645 states to 11645 states and 16234 transitions. [2022-11-20 20:39:14,776 INFO L78 Accepts]: Start accepts. Automaton has 11645 states and 16234 transitions. Word has length 122 [2022-11-20 20:39:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:14,777 INFO L495 AbstractCegarLoop]: Abstraction has 11645 states and 16234 transitions. [2022-11-20 20:39:14,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:39:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 11645 states and 16234 transitions. [2022-11-20 20:39:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 20:39:14,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:14,784 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:14,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:15,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:15,008 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 20:39:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash 177538813, now seen corresponding path program 1 times [2022-11-20 20:39:15,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:15,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136749087] [2022-11-20 20:39:15,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:15,010 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 20:39:15,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:15,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:15,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:16,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:16,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:16,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:16,552 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:16,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136749087] [2022-11-20 20:39:16,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136749087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:16,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:16,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604595937] [2022-11-20 20:39:16,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:16,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:16,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:16,555 INFO L87 Difference]: Start difference. First operand 11645 states and 16234 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:17,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:17,935 INFO L93 Difference]: Finished difference Result 22853 states and 31854 transitions. [2022-11-20 20:39:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:17,936 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-11-20 20:39:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:18,035 INFO L225 Difference]: With dead ends: 22853 [2022-11-20 20:39:18,036 INFO L226 Difference]: Without dead ends: 11229 [2022-11-20 20:39:18,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:18,105 INFO L413 NwaCegarLoop]: 2953 mSDtfsCounter, 1626 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 5229 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:18,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 5229 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:39:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-11-20 20:39:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 11197. [2022-11-20 20:39:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11197 states, 8045 states have (on average 1.2970789310130515) internal successors, (10435), 8228 states have internal predecessors, (10435), 2534 states have call successors, (2534), 623 states have call predecessors, (2534), 615 states have return successors, (2543), 2426 states have call predecessors, (2543), 2530 states have call successors, (2543) [2022-11-20 20:39:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11197 states to 11197 states and 15512 transitions. [2022-11-20 20:39:19,312 INFO L78 Accepts]: Start accepts. Automaton has 11197 states and 15512 transitions. Word has length 126 [2022-11-20 20:39:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:19,314 INFO L495 AbstractCegarLoop]: Abstraction has 11197 states and 15512 transitions. [2022-11-20 20:39:19,315 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 11197 states and 15512 transitions. [2022-11-20 20:39:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 20:39:19,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:19,320 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:19,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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)] Ended with exit code 0 [2022-11-20 20:39:19,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:19,544 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 20:39:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:19,545 INFO L85 PathProgramCache]: Analyzing trace with hash 18888232, now seen corresponding path program 1 times [2022-11-20 20:39:19,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:19,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318920140] [2022-11-20 20:39:19,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:19,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:39:19,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:19,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:19,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:20,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:20,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:21,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:21,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:21,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318920140] [2022-11-20 20:39:21,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318920140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:21,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:21,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877078754] [2022-11-20 20:39:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:21,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:21,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:21,014 INFO L87 Difference]: Start difference. First operand 11197 states and 15512 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:22,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:22,579 INFO L93 Difference]: Finished difference Result 29428 states and 40822 transitions. [2022-11-20 20:39:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-20 20:39:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:22,722 INFO L225 Difference]: With dead ends: 29428 [2022-11-20 20:39:22,722 INFO L226 Difference]: Without dead ends: 18252 [2022-11-20 20:39:22,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:22,780 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 2120 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:22,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 5002 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:39:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18252 states. [2022-11-20 20:39:24,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18252 to 18221. [2022-11-20 20:39:24,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18221 states, 13036 states have (on average 1.295796256520405) internal successors, (16892), 13329 states have internal predecessors, (16892), 4166 states have call successors, (4166), 1031 states have call predecessors, (4166), 1016 states have return successors, (4191), 3974 states have call predecessors, (4191), 4162 states have call successors, (4191) [2022-11-20 20:39:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18221 states to 18221 states and 25249 transitions. [2022-11-20 20:39:24,322 INFO L78 Accepts]: Start accepts. Automaton has 18221 states and 25249 transitions. Word has length 128 [2022-11-20 20:39:24,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:24,323 INFO L495 AbstractCegarLoop]: Abstraction has 18221 states and 25249 transitions. [2022-11-20 20:39:24,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:39:24,324 INFO L276 IsEmpty]: Start isEmpty. Operand 18221 states and 25249 transitions. [2022-11-20 20:39:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 20:39:24,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:24,327 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:24,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:24,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:24,540 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:39:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1580833041, now seen corresponding path program 1 times [2022-11-20 20:39:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:24,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913051356] [2022-11-20 20:39:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:24,542 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 20:39:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:24,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:24,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:25,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:25,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 20:39:25,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:25,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:25,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913051356] [2022-11-20 20:39:25,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913051356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:25,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:25,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:39:25,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215039228] [2022-11-20 20:39:25,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:25,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:25,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:25,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:25,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:25,980 INFO L87 Difference]: Start difference. First operand 18221 states and 25249 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:39:28,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:28,607 INFO L93 Difference]: Finished difference Result 52967 states and 73458 transitions. [2022-11-20 20:39:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:28,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2022-11-20 20:39:28,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:28,810 INFO L225 Difference]: With dead ends: 52967 [2022-11-20 20:39:28,810 INFO L226 Difference]: Without dead ends: 34767 [2022-11-20 20:39:28,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 20:39:28,887 INFO L413 NwaCegarLoop]: 3082 mSDtfsCounter, 2286 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 5409 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:28,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 5409 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:39:28,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34767 states. [2022-11-20 20:39:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34767 to 34709. [2022-11-20 20:39:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34709 states, 24800 states have (on average 1.2961290322580645) internal successors, (32144), 25392 states have internal predecessors, (32144), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-11-20 20:39:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34709 states to 34709 states and 48120 transitions. [2022-11-20 20:39:31,781 INFO L78 Accepts]: Start accepts. Automaton has 34709 states and 48120 transitions. Word has length 145 [2022-11-20 20:39:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:31,782 INFO L495 AbstractCegarLoop]: Abstraction has 34709 states and 48120 transitions. [2022-11-20 20:39:31,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:39:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 34709 states and 48120 transitions. [2022-11-20 20:39:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 20:39:31,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:31,787 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:31,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:32,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:32,000 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 20:39:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash -837279619, now seen corresponding path program 1 times [2022-11-20 20:39:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:32,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209783792] [2022-11-20 20:39:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:32,002 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 20:39:32,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:32,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:32,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:33,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:33,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 20:39:33,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:33,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:33,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209783792] [2022-11-20 20:39:33,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209783792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:33,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:33,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:39:33,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554525939] [2022-11-20 20:39:33,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:33,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:33,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:33,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:33,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:33,995 INFO L87 Difference]: Start difference. First operand 34709 states and 48120 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:39:38,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:38,202 INFO L93 Difference]: Finished difference Result 103973 states and 145760 transitions. [2022-11-20 20:39:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-11-20 20:39:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:38,750 INFO L225 Difference]: With dead ends: 103973 [2022-11-20 20:39:38,750 INFO L226 Difference]: Without dead ends: 69341 [2022-11-20 20:39:39,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 20:39:39,009 INFO L413 NwaCegarLoop]: 4012 mSDtfsCounter, 2264 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 6267 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:39,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 6267 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:39:39,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69341 states. [2022-11-20 20:39:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69341 to 69315. [2022-11-20 20:39:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69315 states, 49526 states have (on average 1.2842547348867261) internal successors, (63604), 50708 states have internal predecessors, (63604), 15897 states have call successors, (15897), 3946 states have call predecessors, (15897), 3889 states have return successors, (16623), 15100 states have call predecessors, (16623), 15893 states have call successors, (16623) [2022-11-20 20:39:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69315 states to 69315 states and 96124 transitions. [2022-11-20 20:39:44,310 INFO L78 Accepts]: Start accepts. Automaton has 69315 states and 96124 transitions. Word has length 183 [2022-11-20 20:39:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:44,310 INFO L495 AbstractCegarLoop]: Abstraction has 69315 states and 96124 transitions. [2022-11-20 20:39:44,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:39:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 69315 states and 96124 transitions. [2022-11-20 20:39:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 20:39:44,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:44,315 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:44,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:44,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:44,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:39:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1071178171, now seen corresponding path program 1 times [2022-11-20 20:39:44,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879537161] [2022-11-20 20:39:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:44,539 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 20:39:44,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:44,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:44,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:46,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:46,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 20:39:46,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:46,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:46,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879537161] [2022-11-20 20:39:46,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879537161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:46,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:46,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:39:46,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299397033] [2022-11-20 20:39:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:46,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:46,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:46,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:46,692 INFO L87 Difference]: Start difference. First operand 69315 states and 96124 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:39:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:39:49,238 INFO L93 Difference]: Finished difference Result 103947 states and 143549 transitions. [2022-11-20 20:39:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:39:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-11-20 20:39:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:39:49,601 INFO L225 Difference]: With dead ends: 103947 [2022-11-20 20:39:49,601 INFO L226 Difference]: Without dead ends: 34709 [2022-11-20 20:39:49,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 20:39:49,853 INFO L413 NwaCegarLoop]: 2311 mSDtfsCounter, 2256 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:39:49,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2311 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:39:49,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34709 states. [2022-11-20 20:39:52,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34709 to 34709. [2022-11-20 20:39:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34709 states, 24800 states have (on average 1.270483870967742) internal successors, (31508), 25392 states have internal predecessors, (31508), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-11-20 20:39:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34709 states to 34709 states and 47484 transitions. [2022-11-20 20:39:52,564 INFO L78 Accepts]: Start accepts. Automaton has 34709 states and 47484 transitions. Word has length 183 [2022-11-20 20:39:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:39:52,565 INFO L495 AbstractCegarLoop]: Abstraction has 34709 states and 47484 transitions. [2022-11-20 20:39:52,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:39:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 34709 states and 47484 transitions. [2022-11-20 20:39:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 20:39:52,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:39:52,569 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:39:52,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:52,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:52,792 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 20:39:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:39:52,793 INFO L85 PathProgramCache]: Analyzing trace with hash 578551997, now seen corresponding path program 1 times [2022-11-20 20:39:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:39:52,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953530763] [2022-11-20 20:39:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:39:52,794 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 20:39:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:39:52,796 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:52,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8bc7bf-021d-4e4b-b7cd-bed2b9b28907/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 20:39:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:39:53,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:39:53,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:39:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 20:39:54,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:39:54,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:39:54,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953530763] [2022-11-20 20:39:54,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953530763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:39:54,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:39:54,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:39:54,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195486621] [2022-11-20 20:39:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:39:54,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:39:54,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:39:54,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:39:54,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:39:54,559 INFO L87 Difference]: Start difference. First operand 34709 states and 47484 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)