./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-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P --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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:47:12,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:47:12,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:47:12,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:47:12,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:47:12,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:47:12,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:47:12,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:47:12,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:47:12,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:47:12,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:47:12,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:47:12,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:47:12,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:47:12,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:47:12,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:47:12,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:47:12,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:47:12,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:47:12,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:47:12,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:47:12,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:47:12,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:47:12,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:47:12,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:47:12,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:47:12,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:47:12,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:47:12,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:47:12,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:47:12,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:47:12,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:47:12,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:47:12,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:47:12,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:47:12,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:47:12,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:47:12,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:47:12,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:47:12,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:47:12,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:47:12,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:47:12,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:47:12,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:47:12,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:47:12,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:47:12,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:47:12,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:47:12,507 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:47:12,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:47:12,507 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:47:12,507 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:47:12,507 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:47:12,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:47:12,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:47:12,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:47:12,508 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:47:12,508 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:47:12,508 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:47:12,509 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:47:12,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:47:12,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:47:12,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:47:12,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:47:12,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:47:12,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:47:12,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:47:12,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:47:12,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:47:12,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:47:12,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:47:12,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:47:12,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:47:12,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:47:12,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:47:12,513 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2021-11-21 01:47:12,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:47:12,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:47:12,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:47:12,788 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:47:12,789 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:47:12,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-21 01:47:12,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/data/3926fa8a4/946a8a8bc7524995a81099fdcc805a75/FLAG6f998edbb [2021-11-21 01:47:13,974 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:47:13,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-21 01:47:14,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/data/3926fa8a4/946a8a8bc7524995a81099fdcc805a75/FLAG6f998edbb [2021-11-21 01:47:14,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/data/3926fa8a4/946a8a8bc7524995a81099fdcc805a75 [2021-11-21 01:47:14,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:47:14,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:47:14,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:47:14,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:47:14,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:47:14,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:47:14" (1/1) ... [2021-11-21 01:47:14,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f98e78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:14, skipping insertion in model container [2021-11-21 01:47:14,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:47:14" (1/1) ... [2021-11-21 01:47:14,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:47:14,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:47:19,928 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-21 01:47:19,932 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-21 01:47:19,932 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-21 01:47:19,933 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-21 01:47:19,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:47:20,034 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:47:20,789 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-21 01:47:20,790 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-21 01:47:20,790 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-21 01:47:20,791 WARN L230 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_67caceaf-2b49-4abb-b780-d6a762f8bf31/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-21 01:47:20,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:47:21,066 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:47:21,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21 WrapperNode [2021-11-21 01:47:21,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:47:21,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:47:21,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:47:21,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:47:21,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:21,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:21,619 INFO L137 Inliner]: procedures = 544, calls = 4122, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8578 [2021-11-21 01:47:21,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:47:21,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:47:21,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:47:21,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:47:21,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:21,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:21,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:21,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:22,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:22,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:22,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:22,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:47:22,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:47:22,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:47:22,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:47:22,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (1/1) ... [2021-11-21 01:47:22,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:47:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:47:22,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:47:22,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67caceaf-2b49-4abb-b780-d6a762f8bf31/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:47:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-21 01:47:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-21 01:47:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:47:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:47:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:47:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:47:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:47:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-21 01:47:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-21 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-21 01:47:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-21 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-21 01:47:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-21 01:47:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-21 01:47:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-21 01:47:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:47:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:47:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-21 01:47:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-21 01:47:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-21 01:47:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-21 01:47:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-21 01:47:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-21 01:47:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:47:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:47:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-21 01:47:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-21 01:47:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-21 01:47:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-21 01:47:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:47:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:47:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-21 01:47:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-21 01:47:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-21 01:47:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-21 01:47:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-21 01:47:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-21 01:47:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-21 01:47:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-21 01:47:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-21 01:47:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-21 01:47:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-21 01:47:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-21 01:47:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:47:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:47:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-21 01:47:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-21 01:47:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-21 01:47:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-21 01:47:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:47:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:47:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:47:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:47:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-21 01:47:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-21 01:47:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-21 01:47:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:47:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-21 01:47:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-21 01:47:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-21 01:47:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-21 01:47:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-21 01:47:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-21 01:47:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-21 01:47:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-21 01:47:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:47:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:47:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:47:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-21 01:47:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-21 01:47:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-21 01:47:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-21 01:47:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-21 01:47:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-21 01:47:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:47:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:47:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:47:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:47:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-21 01:47:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-21 01:47:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:47:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:47:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:47:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:47:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:47:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:47:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:47:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:47:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:47:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:47:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:47:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-21 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-21 01:47:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-21 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-21 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-21 01:47:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-21 01:47:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-21 01:47:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-21 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-21 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-21 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-21 01:47:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-21 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:47:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:47:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:47:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-21 01:47:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-21 01:47:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:47:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-21 01:47:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-21 01:47:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:47:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:47:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:47:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:47:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:47:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:47:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:47:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-21 01:47:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-21 01:47:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-21 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-21 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-21 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-21 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-21 01:47:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-21 01:47:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-21 01:47:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-21 01:47:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 01:47:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 01:47:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-21 01:47:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-21 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:47:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-21 01:47:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-21 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:47:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-21 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-21 01:47:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-21 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-21 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-21 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-21 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-21 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-21 01:47:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-21 01:47:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-21 01:47:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-21 01:47:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-21 01:47:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:47:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-21 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-21 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-21 01:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-21 01:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-21 01:47:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-21 01:47:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:47:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:47:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-21 01:47:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-21 01:47:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-21 01:47:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-21 01:47:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-21 01:47:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-21 01:47:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-21 01:47:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-21 01:47:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-21 01:47:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-21 01:47:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:47:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:47:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-21 01:47:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-21 01:47:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:47:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:47:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-21 01:47:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-21 01:47:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-21 01:47:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-21 01:47:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-21 01:47:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-21 01:47:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-21 01:47:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-21 01:47:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:47:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:47:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-21 01:47:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-21 01:47:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:47:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-21 01:47:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-21 01:47:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-21 01:47:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-21 01:47:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-21 01:47:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-21 01:47:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-21 01:47:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-21 01:47:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:47:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-21 01:47:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-21 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-21 01:47:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-21 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-21 01:47:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-21 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-21 01:47:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-21 01:47:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-21 01:47:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-21 01:47:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:47:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:47:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-21 01:47:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-21 01:47:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-21 01:47:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-21 01:47:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-21 01:47:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-21 01:47:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:47:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:47:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-21 01:47:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-21 01:47:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:47:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:47:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-21 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-21 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-21 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-21 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-21 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-21 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-21 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-21 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-21 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-21 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-21 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-21 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:47:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:47:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:47:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-21 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-21 01:47:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-21 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-21 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2021-11-21 01:47:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2021-11-21 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-21 01:47:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-21 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-21 01:47:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-21 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-21 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-21 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-21 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-21 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-21 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-21 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-21 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-21 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-21 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-21 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-21 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-21 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-21 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-21 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-21 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-21 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-21 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-21 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-21 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-21 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-21 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-21 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-21 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-21 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-21 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-21 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-21 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-21 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-21 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-21 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-21 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-21 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-21 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-21 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-21 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-21 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-21 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-21 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-21 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-21 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-21 01:47:23,990 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:47:23,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:47:24,518 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:47:40,488 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:47:40,874 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:47:44,487 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:47:44,488 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-21 01:47:44,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:44 BoogieIcfgContainer [2021-11-21 01:47:44,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:47:44,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:47:44,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:47:44,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:47:44,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:47:14" (1/3) ... [2021-11-21 01:47:44,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:44, skipping insertion in model container [2021-11-21 01:47:44,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:21" (2/3) ... [2021-11-21 01:47:44,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:44, skipping insertion in model container [2021-11-21 01:47:44,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:44" (3/3) ... [2021-11-21 01:47:44,511 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-21 01:47:44,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:47:44,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 01:47:44,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:47:44,640 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:47:44,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 01:47:44,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2021-11-21 01:47:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-21 01:47:44,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:44,774 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:44,775 INFO L402 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)] === [2021-11-21 01:47:44,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:44,784 INFO L85 PathProgramCache]: Analyzing trace with hash -69639802, now seen corresponding path program 1 times [2021-11-21 01:47:44,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:44,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571816854] [2021-11-21 01:47:44,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:44,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:47:45,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:45,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571816854] [2021-11-21 01:47:45,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571816854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:45,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:45,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:47:45,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670420586] [2021-11-21 01:47:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:45,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:47:45,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:47:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:47:46,020 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:47:48,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:51,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:59,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:59,127 INFO L93 Difference]: Finished difference Result 8932 states and 13718 transitions. [2021-11-21 01:47:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:47:59,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2021-11-21 01:47:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:59,225 INFO L225 Difference]: With dead ends: 8932 [2021-11-21 01:47:59,226 INFO L226 Difference]: Without dead ends: 5899 [2021-11-21 01:47:59,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:47:59,288 INFO L933 BasicCegarLoop]: 4869 mSDtfsCounter, 4358 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8769 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:59,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4360 Valid, 8769 Invalid, 1084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1079 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2021-11-21 01:47:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2021-11-21 01:48:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2021-11-21 01:48:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1904), 1874 states have call predecessors, (1904), 1902 states have call successors, (1904) [2021-11-21 01:48:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8772 transitions. [2021-11-21 01:48:00,237 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8772 transitions. Word has length 167 [2021-11-21 01:48:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:00,242 INFO L470 AbstractCegarLoop]: Abstraction has 5895 states and 8772 transitions. [2021-11-21 01:48:00,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8772 transitions. [2021-11-21 01:48:00,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-21 01:48:00,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:00,259 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:00,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:48:00,260 INFO L402 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)] === [2021-11-21 01:48:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1259785515, now seen corresponding path program 1 times [2021-11-21 01:48:00,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:00,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703820503] [2021-11-21 01:48:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:00,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:48:00,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:00,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703820503] [2021-11-21 01:48:00,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703820503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:00,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:00,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:00,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526208389] [2021-11-21 01:48:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:00,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:00,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:00,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:00,719 INFO L87 Difference]: Start difference. First operand 5895 states and 8772 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-21 01:48:02,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:11,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:11,289 INFO L93 Difference]: Finished difference Result 17335 states and 26112 transitions. [2021-11-21 01:48:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:11,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2021-11-21 01:48:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:11,425 INFO L225 Difference]: With dead ends: 17335 [2021-11-21 01:48:11,425 INFO L226 Difference]: Without dead ends: 11471 [2021-11-21 01:48:11,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:11,495 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 4287 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:11,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4287 Valid, 8882 Invalid, 1082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-11-21 01:48:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2021-11-21 01:48:12,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2021-11-21 01:48:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4009), 3613 states have call predecessors, (4009), 3681 states have call successors, (4009) [2021-11-21 01:48:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17341 transitions. [2021-11-21 01:48:12,426 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17341 transitions. Word has length 173 [2021-11-21 01:48:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:12,428 INFO L470 AbstractCegarLoop]: Abstraction has 11441 states and 17341 transitions. [2021-11-21 01:48:12,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-21 01:48:12,430 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17341 transitions. [2021-11-21 01:48:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-21 01:48:12,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:12,437 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:12,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:48:12,438 INFO L402 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)] === [2021-11-21 01:48:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash -752069096, now seen corresponding path program 1 times [2021-11-21 01:48:12,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:12,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105842156] [2021-11-21 01:48:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:12,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:48:13,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:13,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105842156] [2021-11-21 01:48:13,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105842156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:13,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:13,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:13,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732808687] [2021-11-21 01:48:13,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:13,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:13,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:13,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:13,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:13,032 INFO L87 Difference]: Start difference. First operand 11441 states and 17341 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:15,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:22,025 INFO L93 Difference]: Finished difference Result 34153 states and 51767 transitions. [2021-11-21 01:48:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:22,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2021-11-21 01:48:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:22,255 INFO L225 Difference]: With dead ends: 34153 [2021-11-21 01:48:22,255 INFO L226 Difference]: Without dead ends: 22743 [2021-11-21 01:48:22,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:22,349 INFO L933 BasicCegarLoop]: 4860 mSDtfsCounter, 4341 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8747 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:22,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4341 Valid, 8747 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:48:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2021-11-21 01:48:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2021-11-21 01:48:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7963), 7157 states have call predecessors, (7963), 7295 states have call successors, (7963) [2021-11-21 01:48:24,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34417 transitions. [2021-11-21 01:48:24,437 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34417 transitions. Word has length 181 [2021-11-21 01:48:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:24,438 INFO L470 AbstractCegarLoop]: Abstraction has 22717 states and 34417 transitions. [2021-11-21 01:48:24,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34417 transitions. [2021-11-21 01:48:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-21 01:48:24,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:24,451 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:24,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:48:24,452 INFO L402 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)] === [2021-11-21 01:48:24,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2059079839, now seen corresponding path program 1 times [2021-11-21 01:48:24,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884927134] [2021-11-21 01:48:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:24,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:48:24,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884927134] [2021-11-21 01:48:24,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884927134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:24,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:24,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:24,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81268515] [2021-11-21 01:48:24,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:24,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:24,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:24,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:24,856 INFO L87 Difference]: Start difference. First operand 22717 states and 34417 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:26,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:29,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:32,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:35,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:35,736 INFO L93 Difference]: Finished difference Result 67873 states and 102823 transitions. [2021-11-21 01:48:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:35,742 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2021-11-21 01:48:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:36,189 INFO L225 Difference]: With dead ends: 67873 [2021-11-21 01:48:36,189 INFO L226 Difference]: Without dead ends: 45187 [2021-11-21 01:48:36,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:36,338 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4340 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:36,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4340 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-21 01:48:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2021-11-21 01:48:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45161. [2021-11-21 01:48:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45161 states, 28295 states have (on average 1.3449726100017672) internal successors, (38056), 29041 states have internal predecessors, (38056), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15835), 14205 states have call predecessors, (15835), 14483 states have call successors, (15835) [2021-11-21 01:48:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45161 states to 45161 states and 68377 transitions. [2021-11-21 01:48:39,729 INFO L78 Accepts]: Start accepts. Automaton has 45161 states and 68377 transitions. Word has length 182 [2021-11-21 01:48:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:39,730 INFO L470 AbstractCegarLoop]: Abstraction has 45161 states and 68377 transitions. [2021-11-21 01:48:39,730 INFO L471 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:39,731 INFO L276 IsEmpty]: Start isEmpty. Operand 45161 states and 68377 transitions. [2021-11-21 01:48:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-21 01:48:39,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:39,736 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:39,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:48:39,737 INFO L402 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)] === [2021-11-21 01:48:39,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash 748037061, now seen corresponding path program 1 times [2021-11-21 01:48:39,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:39,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393574174] [2021-11-21 01:48:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:39,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:48:39,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:39,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393574174] [2021-11-21 01:48:39,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393574174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:39,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:39,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:39,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863651212] [2021-11-21 01:48:39,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:39,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:39,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:39,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:39,975 INFO L87 Difference]: Start difference. First operand 45161 states and 68377 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:42,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:50,825 INFO L93 Difference]: Finished difference Result 134989 states and 204367 transitions. [2021-11-21 01:48:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:50,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 183 [2021-11-21 01:48:50,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:51,657 INFO L225 Difference]: With dead ends: 134989 [2021-11-21 01:48:51,657 INFO L226 Difference]: Without dead ends: 89859 [2021-11-21 01:48:52,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:52,016 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4339 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:52,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4339 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:48:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89859 states. [2021-11-21 01:48:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89859 to 89833. [2021-11-21 01:48:56,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89833 states, 56295 states have (on average 1.3433519850786038) internal successors, (75624), 57785 states have internal predecessors, (75624), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31515), 28221 states have call predecessors, (31515), 28779 states have call successors, (31515) [2021-11-21 01:48:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89833 states to 89833 states and 135921 transitions. [2021-11-21 01:48:57,483 INFO L78 Accepts]: Start accepts. Automaton has 89833 states and 135921 transitions. Word has length 183 [2021-11-21 01:48:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:57,484 INFO L470 AbstractCegarLoop]: Abstraction has 89833 states and 135921 transitions. [2021-11-21 01:48:57,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 89833 states and 135921 transitions. [2021-11-21 01:48:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-21 01:48:57,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:57,491 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:57,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:48:57,492 INFO L402 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)] === [2021-11-21 01:48:57,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:57,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1050221668, now seen corresponding path program 1 times [2021-11-21 01:48:57,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:57,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82785368] [2021-11-21 01:48:57,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:57,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-21 01:48:57,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:57,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82785368] [2021-11-21 01:48:57,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82785368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:57,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:57,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:57,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468148401] [2021-11-21 01:48:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:57,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:57,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:57,722 INFO L87 Difference]: Start difference. First operand 89833 states and 135921 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:48:59,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:12,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:12,238 INFO L93 Difference]: Finished difference Result 267757 states and 405115 transitions. [2021-11-21 01:49:12,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:49:12,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2021-11-21 01:49:12,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:13,600 INFO L225 Difference]: With dead ends: 267757 [2021-11-21 01:49:13,600 INFO L226 Difference]: Without dead ends: 177955 [2021-11-21 01:49:14,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:14,473 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4338 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:14,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4338 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 01:49:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177955 states. [2021-11-21 01:49:23,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177955 to 177881. [2021-11-21 01:49:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177881 states, 111491 states have (on average 1.341812343597241) internal successors, (149600), 114449 states have internal predecessors, (149600), 56936 states have call successors, (56936), 9518 states have call predecessors, (56936), 9451 states have return successors, (62461), 55819 states have call predecessors, (62461), 56933 states have call successors, (62461) [2021-11-21 01:49:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177881 states to 177881 states and 268997 transitions. [2021-11-21 01:49:26,005 INFO L78 Accepts]: Start accepts. Automaton has 177881 states and 268997 transitions. Word has length 184 [2021-11-21 01:49:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:26,007 INFO L470 AbstractCegarLoop]: Abstraction has 177881 states and 268997 transitions. [2021-11-21 01:49:26,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:49:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 177881 states and 268997 transitions. [2021-11-21 01:49:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-21 01:49:26,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:26,023 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 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] [2021-11-21 01:49:26,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:49:26,024 INFO L402 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)] === [2021-11-21 01:49:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash 180677276, now seen corresponding path program 1 times [2021-11-21 01:49:26,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:26,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593662175] [2021-11-21 01:49:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:26,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2021-11-21 01:49:26,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:26,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593662175] [2021-11-21 01:49:26,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593662175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:26,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:26,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:49:26,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609586163] [2021-11-21 01:49:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:26,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:49:26,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:26,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:49:26,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:26,392 INFO L87 Difference]: Start difference. First operand 177881 states and 268997 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:49:28,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:37,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:39,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []