./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-renesas-sh_eth.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_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/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_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/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_e50451d6-4ca8-40c5-9378-78bc73c09dce/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 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:30:01,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:30:01,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:30:01,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:30:01,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:30:01,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:30:01,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:30:01,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:30:01,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:30:01,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:30:01,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:30:01,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:30:01,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:30:01,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:30:01,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:30:01,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:30:01,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:30:01,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:30:01,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:30:01,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:30:01,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:30:01,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:30:01,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:30:01,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:30:01,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:30:01,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:30:01,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:30:01,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:30:01,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:30:01,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:30:01,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:30:01,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:30:01,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:30:01,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:30:01,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:30:01,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:30:01,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:30:01,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:30:01,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:30:01,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:30:01,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:30:01,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:30:01,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:30:01,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:30:01,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:30:01,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:30:01,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:30:01,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:30:01,504 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:30:01,504 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:30:01,505 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:30:01,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:30:01,509 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:30:01,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:30:01,509 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:30:01,510 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:30:01,510 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:30:01,510 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:30:01,510 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:30:01,511 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:30:01,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:30:01,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:30:01,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:30:01,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:30:01,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:30:01,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:30:01,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:30:01,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:30:01,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:30:01,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:30:01,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:30:01,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:30:01,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:30:01,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:30:01,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:30:01,516 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:30:01,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:30:01,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:30:01,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:30:01,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:30:01,517 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 [2021-11-21 00:30:01,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:30:01,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:30:01,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:30:01,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:30:01,868 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:30:01,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-21 00:30:01,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/data/751fb5996/68811b97b1c948fea6804c2a81de944f/FLAGd43e77adf [2021-11-21 00:30:03,365 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:30:03,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-21 00:30:03,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/data/751fb5996/68811b97b1c948fea6804c2a81de944f/FLAGd43e77adf [2021-11-21 00:30:03,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/data/751fb5996/68811b97b1c948fea6804c2a81de944f [2021-11-21 00:30:03,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:30:03,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:30:03,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:30:03,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:30:03,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:30:03,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:30:03" (1/1) ... [2021-11-21 00:30:03,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1d2288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:03, skipping insertion in model container [2021-11-21 00:30:03,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:30:03" (1/1) ... [2021-11-21 00:30:03,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:30:04,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:30:10,344 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2021-11-21 00:30:10,346 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2021-11-21 00:30:10,347 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2021-11-21 00:30:10,348 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2021-11-21 00:30:10,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:30:10,492 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:30:10,907 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2021-11-21 00:30:10,908 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2021-11-21 00:30:10,908 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2021-11-21 00:30:10,909 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_e50451d6-4ca8-40c5-9378-78bc73c09dce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2021-11-21 00:30:10,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:30:11,331 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:30:11,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11 WrapperNode [2021-11-21 00:30:11,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:30:11,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:30:11,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:30:11,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:30:11,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:11,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:11,862 INFO L137 Inliner]: procedures = 680, calls = 3798, calls flagged for inlining = 403, calls inlined = 378, statements flattened = 9029 [2021-11-21 00:30:11,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:30:11,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:30:11,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:30:11,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:30:11,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:11,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:11,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:11,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:12,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:12,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:12,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:30:12,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:30:12,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:30:12,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:30:12,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (1/1) ... [2021-11-21 00:30:12,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:30:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:30:12,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:30:12,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50451d6-4ca8-40c5-9378-78bc73c09dce/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:30:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:30:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:30:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:30:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:30:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_sset_count [2021-11-21 00:30:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_sset_count [2021-11-21 00:30:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2021-11-21 00:30:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2021-11-21 00:30:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:30:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:30:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2021-11-21 00:30:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2021-11-21 00:30:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2021-11-21 00:30:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2021-11-21 00:30:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:30:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:30:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2021-11-21 00:30:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2021-11-21 00:30:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_op_get_link [2021-11-21 00:30:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_op_get_link [2021-11-21 00:30:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2021-11-21 00:30:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2021-11-21 00:30:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:30:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:30:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:30:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:30:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2021-11-21 00:30:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2021-11-21 00:30:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 00:30:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 00:30:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:30:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:30:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:30:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:30:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-11-21 00:30:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-11-21 00:30:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2021-11-21 00:30:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2021-11-21 00:30:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-21 00:30:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-21 00:30:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2021-11-21 00:30:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2021-11-21 00:30:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2021-11-21 00:30:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2021-11-21 00:30:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2021-11-21 00:30:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2021-11-21 00:30:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-21 00:30:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-21 00:30:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-21 00:30:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-21 00:30:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:30:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:30:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-21 00:30:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-21 00:30:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:30:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:30:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:30:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:30:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2021-11-21 00:30:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2021-11-21 00:30:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-21 00:30:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-21 00:30:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:30:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2021-11-21 00:30:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2021-11-21 00:30:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-21 00:30:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-21 00:30:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:30:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:30:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:30:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:30:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2021-11-21 00:30:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2021-11-21 00:30:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:30:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:30:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:30:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-21 00:30:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-21 00:30:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:30:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ringparam [2021-11-21 00:30:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ringparam [2021-11-21 00:30:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2021-11-21 00:30:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2021-11-21 00:30:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:30:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:30:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:30:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_nway_reset [2021-11-21 00:30:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_nway_reset [2021-11-21 00:30:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:30:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:30:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2021-11-21 00:30:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2021-11-21 00:30:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2021-11-21 00:30:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2021-11-21 00:30:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:30:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:30:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:30:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:30:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure sh_get_mdio [2021-11-21 00:30:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_get_mdio [2021-11-21 00:30:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2021-11-21 00:30:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2021-11-21 00:30:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2021-11-21 00:30:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2021-11-21 00:30:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2021-11-21 00:30:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2021-11-21 00:30:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:30:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:30:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-21 00:30:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-21 00:30:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:30:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:30:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:30:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:30:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:30:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:30:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:30:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-21 00:30:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-21 00:30:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 00:30:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 00:30:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_ringparam [2021-11-21 00:30:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_ringparam [2021-11-21 00:30:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:30:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:30:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:30:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:30:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:30:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:30:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:30:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:30:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:30:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:30:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:30:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2021-11-21 00:30:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2021-11-21 00:30:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2021-11-21 00:30:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2021-11-21 00:30:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2021-11-21 00:30:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2021-11-21 00:30:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-21 00:30:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-21 00:30:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 00:30:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 00:30:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-21 00:30:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-21 00:30:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:30:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:30:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:30:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:30:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:30:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:30:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2021-11-21 00:30:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2021-11-21 00:30:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:30:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:30:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2021-11-21 00:30:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2021-11-21 00:30:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-21 00:30:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-21 00:30:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2021-11-21 00:30:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2021-11-21 00:30:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2021-11-21 00:30:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2021-11-21 00:30:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:30:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:30:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:30:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:30:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:30:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:30:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_probe [2021-11-21 00:30:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_probe [2021-11-21 00:30:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2021-11-21 00:30:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2021-11-21 00:30:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:30:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2021-11-21 00:30:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2021-11-21 00:30:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2021-11-21 00:30:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2021-11-21 00:30:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2021-11-21 00:30:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2021-11-21 00:30:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:30:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:30:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2021-11-21 00:30:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2021-11-21 00:30:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2021-11-21 00:30:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2021-11-21 00:30:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:30:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:30:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2021-11-21 00:30:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2021-11-21 00:30:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2021-11-21 00:30:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2021-11-21 00:30:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-21 00:30:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-21 00:30:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2021-11-21 00:30:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2021-11-21 00:30:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:30:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:30:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:30:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:30:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:30:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:30:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2021-11-21 00:30:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2021-11-21 00:30:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_resume [2021-11-21 00:30:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_resume [2021-11-21 00:30:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:30:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2021-11-21 00:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2021-11-21 00:30:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:30:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2021-11-21 00:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2021-11-21 00:30:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:30:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:30:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_msglevel [2021-11-21 00:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_msglevel [2021-11-21 00:30:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 00:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 00:30:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2021-11-21 00:30:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2021-11-21 00:30:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2021-11-21 00:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2021-11-21 00:30:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2021-11-21 00:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2021-11-21 00:30:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_settings [2021-11-21 00:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_settings [2021-11-21 00:30:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-21 00:30:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-21 00:30:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2021-11-21 00:30:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2021-11-21 00:30:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:30:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 00:30:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 00:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_msglevel [2021-11-21 00:30:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_msglevel [2021-11-21 00:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:30:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:30:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_remove [2021-11-21 00:30:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_remove [2021-11-21 00:30:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:30:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:30:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2021-11-21 00:30:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2021-11-21 00:30:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2021-11-21 00:30:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2021-11-21 00:30:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2021-11-21 00:30:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2021-11-21 00:30:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_settings [2021-11-21 00:30:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_settings [2021-11-21 00:30:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:30:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:30:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_strings [2021-11-21 00:30:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_strings [2021-11-21 00:30:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ethtool_stats [2021-11-21 00:30:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ethtool_stats [2021-11-21 00:30:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:30:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:30:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2021-11-21 00:30:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2021-11-21 00:30:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sh_eth_private [2021-11-21 00:30:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sh_eth_private [2021-11-21 00:30:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2021-11-21 00:30:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2021-11-21 00:30:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:30:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2021-11-21 00:30:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2021-11-21 00:30:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2021-11-21 00:30:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2021-11-21 00:30:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2021-11-21 00:30:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2021-11-21 00:30:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:30:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:30:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2021-11-21 00:30:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2021-11-21 00:30:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:30:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:30:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-21 00:30:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-21 00:30:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sh_eth_private [2021-11-21 00:30:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sh_eth_private [2021-11-21 00:30:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:30:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:30:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2021-11-21 00:30:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2021-11-21 00:30:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-21 00:30:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-21 00:30:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2021-11-21 00:30:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2021-11-21 00:30:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2021-11-21 00:30:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2021-11-21 00:30:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:30:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:30:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:30:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:30:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 00:30:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 00:30:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:30:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2021-11-21 00:30:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2021-11-21 00:30:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:30:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:30:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-21 00:30:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-21 00:30:13,870 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:30:13,875 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:30:14,398 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:31:15,495 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:31:15,624 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:31:18,349 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:31:18,350 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-21 00:31:18,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:18 BoogieIcfgContainer [2021-11-21 00:31:18,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:31:18,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:31:18,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:31:18,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:31:18,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:30:03" (1/3) ... [2021-11-21 00:31:18,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcec649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:18, skipping insertion in model container [2021-11-21 00:31:18,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:30:11" (2/3) ... [2021-11-21 00:31:18,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcec649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:18, skipping insertion in model container [2021-11-21 00:31:18,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:18" (3/3) ... [2021-11-21 00:31:18,367 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-21 00:31:18,373 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:31:18,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 00:31:18,438 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:31:18,445 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 00:31:18,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 00:31:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) [2021-11-21 00:31:18,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2021-11-21 00:31:18,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:18,563 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:18,564 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 00:31:18,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1216894435, now seen corresponding path program 1 times [2021-11-21 00:31:18,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:18,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3529229] [2021-11-21 00:31:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:18,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:31:20,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:20,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3529229] [2021-11-21 00:31:20,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3529229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:20,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:20,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:20,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824218283] [2021-11-21 00:31:20,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:20,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:20,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:20,117 INFO L87 Difference]: Start difference. First operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:22,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:26,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:27,932 INFO L93 Difference]: Finished difference Result 7284 states and 11179 transitions. [2021-11-21 00:31:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 539 [2021-11-21 00:31:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:28,021 INFO L225 Difference]: With dead ends: 7284 [2021-11-21 00:31:28,021 INFO L226 Difference]: Without dead ends: 4788 [2021-11-21 00:31:28,057 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 00:31:28,063 INFO L933 BasicCegarLoop]: 4103 mSDtfsCounter, 3418 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:28,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3418 Valid, 7322 Invalid, 1141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1134 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 00:31:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2021-11-21 00:31:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4761. [2021-11-21 00:31:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 2890 states have (on average 1.346712802768166) internal successors, (3892), 3005 states have internal predecessors, (3892), 1589 states have call successors, (1589), 284 states have call predecessors, (1589), 279 states have return successors, (1632), 1525 states have call predecessors, (1632), 1585 states have call successors, (1632) [2021-11-21 00:31:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 7113 transitions. [2021-11-21 00:31:28,588 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 7113 transitions. Word has length 539 [2021-11-21 00:31:28,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:28,591 INFO L470 AbstractCegarLoop]: Abstraction has 4761 states and 7113 transitions. [2021-11-21 00:31:28,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 7113 transitions. [2021-11-21 00:31:28,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-21 00:31:28,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:28,610 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:28,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:31:28,611 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 00:31:28,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2141363182, now seen corresponding path program 1 times [2021-11-21 00:31:28,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:28,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747836765] [2021-11-21 00:31:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:28,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:31:29,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:29,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747836765] [2021-11-21 00:31:29,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747836765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:29,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:29,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:29,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729068136] [2021-11-21 00:31:29,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:29,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:29,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:29,186 INFO L87 Difference]: Start difference. First operand 4761 states and 7113 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:31,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:36,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:37,320 INFO L93 Difference]: Finished difference Result 13812 states and 20617 transitions. [2021-11-21 00:31:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 541 [2021-11-21 00:31:37,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:37,452 INFO L225 Difference]: With dead ends: 13812 [2021-11-21 00:31:37,453 INFO L226 Difference]: Without dead ends: 9156 [2021-11-21 00:31:37,498 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 00:31:37,499 INFO L933 BasicCegarLoop]: 3950 mSDtfsCounter, 3344 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:37,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3346 Valid, 7133 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1137 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:31:37,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2021-11-21 00:31:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 9152. [2021-11-21 00:31:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9152 states, 5594 states have (on average 1.3489452985341437) internal successors, (7546), 5809 states have internal predecessors, (7546), 3003 states have call successors, (3003), 561 states have call predecessors, (3003), 552 states have return successors, (3096), 2885 states have call predecessors, (3096), 2999 states have call successors, (3096) [2021-11-21 00:31:38,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9152 states to 9152 states and 13645 transitions. [2021-11-21 00:31:38,341 INFO L78 Accepts]: Start accepts. Automaton has 9152 states and 13645 transitions. Word has length 541 [2021-11-21 00:31:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:38,345 INFO L470 AbstractCegarLoop]: Abstraction has 9152 states and 13645 transitions. [2021-11-21 00:31:38,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 9152 states and 13645 transitions. [2021-11-21 00:31:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2021-11-21 00:31:38,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:38,373 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:38,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:31:38,377 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 00:31:38,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:38,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1750931807, now seen corresponding path program 1 times [2021-11-21 00:31:38,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:38,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642504043] [2021-11-21 00:31:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:38,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:31:39,301 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:39,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642504043] [2021-11-21 00:31:39,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642504043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:39,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:39,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:39,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279418416] [2021-11-21 00:31:39,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:39,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:39,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:39,305 INFO L87 Difference]: Start difference. First operand 9152 states and 13645 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:41,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:44,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:47,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:47,538 INFO L93 Difference]: Finished difference Result 26730 states and 40051 transitions. [2021-11-21 00:31:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:47,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 549 [2021-11-21 00:31:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:47,776 INFO L225 Difference]: With dead ends: 26730 [2021-11-21 00:31:47,777 INFO L226 Difference]: Without dead ends: 17683 [2021-11-21 00:31:47,874 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 00:31:47,878 INFO L933 BasicCegarLoop]: 3978 mSDtfsCounter, 3290 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:47,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 7169 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1171 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:31:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17683 states. [2021-11-21 00:31:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17683 to 17658. [2021-11-21 00:31:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17658 states, 10813 states have (on average 1.3469897345787478) internal successors, (14565), 11234 states have internal predecessors, (14565), 5742 states have call successors, (5742), 1117 states have call predecessors, (5742), 1100 states have return successors, (6203), 5511 states have call predecessors, (6203), 5738 states have call successors, (6203) [2021-11-21 00:31:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17658 states to 17658 states and 26510 transitions. [2021-11-21 00:31:49,372 INFO L78 Accepts]: Start accepts. Automaton has 17658 states and 26510 transitions. Word has length 549 [2021-11-21 00:31:49,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:49,375 INFO L470 AbstractCegarLoop]: Abstraction has 17658 states and 26510 transitions. [2021-11-21 00:31:49,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:49,376 INFO L276 IsEmpty]: Start isEmpty. Operand 17658 states and 26510 transitions. [2021-11-21 00:31:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-11-21 00:31:49,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:49,398 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:49,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:31:49,399 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 00:31:49,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:49,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1792859164, now seen corresponding path program 1 times [2021-11-21 00:31:49,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:49,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119037591] [2021-11-21 00:31:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:49,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:31:50,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:50,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119037591] [2021-11-21 00:31:50,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119037591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:50,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:50,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:50,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568953218] [2021-11-21 00:31:50,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:50,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:50,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:50,148 INFO L87 Difference]: Start difference. First operand 17658 states and 26510 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:31:52,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:55,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:58,553 INFO L93 Difference]: Finished difference Result 51902 states and 78507 transitions. [2021-11-21 00:31:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:58,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 551 [2021-11-21 00:31:58,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:58,872 INFO L225 Difference]: With dead ends: 51902 [2021-11-21 00:31:58,872 INFO L226 Difference]: Without dead ends: 34349 [2021-11-21 00:31:59,003 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 00:31:59,008 INFO L933 BasicCegarLoop]: 4055 mSDtfsCounter, 3288 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:59,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3288 Valid, 7246 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1209 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 00:31:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34349 states. [2021-11-21 00:32:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34349 to 34324. [2021-11-21 00:32:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34324 states, 21030 states have (on average 1.3440798858773182) internal successors, (28266), 21863 states have internal predecessors, (28266), 11095 states have call successors, (11095), 2229 states have call predecessors, (11095), 2196 states have return successors, (12720), 10637 states have call predecessors, (12720), 11091 states have call successors, (12720) [2021-11-21 00:32:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34324 states to 34324 states and 52081 transitions. [2021-11-21 00:32:01,595 INFO L78 Accepts]: Start accepts. Automaton has 34324 states and 52081 transitions. Word has length 551 [2021-11-21 00:32:01,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:01,596 INFO L470 AbstractCegarLoop]: Abstraction has 34324 states and 52081 transitions. [2021-11-21 00:32:01,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 34324 states and 52081 transitions. [2021-11-21 00:32:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2021-11-21 00:32:01,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:01,607 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:01,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:32:01,608 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 00:32:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 602459301, now seen corresponding path program 1 times [2021-11-21 00:32:01,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:01,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100024623] [2021-11-21 00:32:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:01,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:32:02,162 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100024623] [2021-11-21 00:32:02,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100024623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:02,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:02,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:02,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413891132] [2021-11-21 00:32:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:02,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:02,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:02,165 INFO L87 Difference]: Start difference. First operand 34324 states and 52081 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:04,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:07,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:11,825 INFO L93 Difference]: Finished difference Result 101210 states and 154785 transitions. [2021-11-21 00:32:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:11,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 550 [2021-11-21 00:32:11,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:12,644 INFO L225 Difference]: With dead ends: 101210 [2021-11-21 00:32:12,645 INFO L226 Difference]: Without dead ends: 66991 [2021-11-21 00:32:12,856 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 00:32:12,858 INFO L933 BasicCegarLoop]: 4130 mSDtfsCounter, 3289 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:12,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 7321 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1247 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-21 00:32:12,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66991 states. [2021-11-21 00:32:17,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66991 to 66966. [2021-11-21 00:32:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66966 states, 41023 states have (on average 1.340589425444263) internal successors, (54995), 42680 states have internal predecessors, (54995), 21552 states have call successors, (21552), 4453 states have call predecessors, (21552), 4388 states have return successors, (26201), 20639 states have call predecessors, (26201), 21548 states have call successors, (26201) [2021-11-21 00:32:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66966 states to 66966 states and 102748 transitions. [2021-11-21 00:32:18,205 INFO L78 Accepts]: Start accepts. Automaton has 66966 states and 102748 transitions. Word has length 550 [2021-11-21 00:32:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:18,207 INFO L470 AbstractCegarLoop]: Abstraction has 66966 states and 102748 transitions. [2021-11-21 00:32:18,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 66966 states and 102748 transitions. [2021-11-21 00:32:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-21 00:32:18,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:18,221 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:18,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:32:18,222 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 00:32:18,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash 569402028, now seen corresponding path program 1 times [2021-11-21 00:32:18,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:18,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339049337] [2021-11-21 00:32:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:18,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:19,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:32:19,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:19,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339049337] [2021-11-21 00:32:19,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339049337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:19,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:19,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:19,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113742684] [2021-11-21 00:32:19,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:19,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:19,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:19,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:19,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:19,341 INFO L87 Difference]: Start difference. First operand 66966 states and 102748 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:21,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:25,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:30,901 INFO L93 Difference]: Finished difference Result 194268 states and 293916 transitions. [2021-11-21 00:32:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:30,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 553 [2021-11-21 00:32:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:32,210 INFO L225 Difference]: With dead ends: 194268 [2021-11-21 00:32:32,210 INFO L226 Difference]: Without dead ends: 127407 [2021-11-21 00:32:32,521 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 00:32:32,522 INFO L933 BasicCegarLoop]: 4223 mSDtfsCounter, 3085 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 7385 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:32,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3086 Valid, 7385 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1352 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 00:32:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127407 states. [2021-11-21 00:32:39,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127407 to 127318. [2021-11-21 00:32:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127318 states, 77695 states have (on average 1.3313984168865436) internal successors, (103443), 80984 states have internal predecessors, (103443), 40992 states have call successors, (40992), 8757 states have call predecessors, (40992), 8628 states have return successors, (45897), 39167 states have call predecessors, (45897), 40988 states have call successors, (45897) [2021-11-21 00:32:41,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127318 states to 127318 states and 190332 transitions. [2021-11-21 00:32:41,325 INFO L78 Accepts]: Start accepts. Automaton has 127318 states and 190332 transitions. Word has length 553 [2021-11-21 00:32:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:41,327 INFO L470 AbstractCegarLoop]: Abstraction has 127318 states and 190332 transitions. [2021-11-21 00:32:41,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 127318 states and 190332 transitions. [2021-11-21 00:32:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-11-21 00:32:41,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:41,338 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:41,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:32:41,338 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 00:32:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:41,339 INFO L85 PathProgramCache]: Analyzing trace with hash 538290717, now seen corresponding path program 1 times [2021-11-21 00:32:41,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:41,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836337837] [2021-11-21 00:32:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:41,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-21 00:32:41,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:41,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836337837] [2021-11-21 00:32:41,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836337837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:41,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:41,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:41,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136645356] [2021-11-21 00:32:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:41,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:41,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:41,873 INFO L87 Difference]: Start difference. First operand 127318 states and 190332 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-21 00:32:44,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:47,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:58,733 INFO L93 Difference]: Finished difference Result 376062 states and 564127 transitions. [2021-11-21 00:32:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:58,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 554 [2021-11-21 00:32:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:33:01,297 INFO L225 Difference]: With dead ends: 376062 [2021-11-21 00:33:01,298 INFO L226 Difference]: Without dead ends: 248849 [2021-11-21 00:33:01,917 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 00:33:01,918 INFO L933 BasicCegarLoop]: 4209 mSDtfsCounter, 3285 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 7400 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:33:01,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3285 Valid, 7400 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1285 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:33:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248849 states.