./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/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 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:55:37,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:55:37,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:55:37,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:55:37,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:55:37,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:55:37,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:55:37,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:55:37,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:55:37,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:55:37,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:55:37,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:55:37,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:55:37,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:55:37,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:55:37,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:55:37,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:55:37,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:55:37,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:55:37,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:55:37,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:55:37,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:55:37,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:55:37,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:55:37,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:55:37,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:55:37,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:55:37,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:55:37,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:55:37,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:55:37,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:55:37,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:55:37,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:55:37,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:55:37,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:55:37,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:55:37,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:55:37,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:55:37,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:55:37,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:55:37,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:55:37,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:55:37,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:55:37,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:55:37,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:55:37,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:55:37,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:55:37,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:55:37,840 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:55:37,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:55:37,841 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:55:37,841 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:55:37,841 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:55:37,842 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:55:37,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:55:37,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:55:37,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:55:37,843 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:55:37,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:55:37,843 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:55:37,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:55:37,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:55:37,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:55:37,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:55:37,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:55:37,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:55:37,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:55:37,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:55:37,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:55:37,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:55:37,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:55:37,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:55:37,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:55:37,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:55:37,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:55:37,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:55:37,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:55:37,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:55:37,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:55:37,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:55:37,850 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add [2021-11-21 00:55:38,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:55:38,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:55:38,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:55:38,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:55:38,180 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:55:38,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 00:55:38,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/data/4df1bb2bb/f8d8b5da9b6a4d5ea830a01564035e3b/FLAG70bd3882b [2021-11-21 00:55:39,854 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:55:39,856 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 00:55:39,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/data/4df1bb2bb/f8d8b5da9b6a4d5ea830a01564035e3b/FLAG70bd3882b [2021-11-21 00:55:40,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/data/4df1bb2bb/f8d8b5da9b6a4d5ea830a01564035e3b [2021-11-21 00:55:40,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:55:40,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:55:40,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:55:40,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:55:40,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:55:40,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:55:40" (1/1) ... [2021-11-21 00:55:40,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e33995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:40, skipping insertion in model container [2021-11-21 00:55:40,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:55:40" (1/1) ... [2021-11-21 00:55:40,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:55:40,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:55:51,633 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2021-11-21 00:55:51,636 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2021-11-21 00:55:51,637 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2021-11-21 00:55:51,637 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2021-11-21 00:55:51,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:55:51,777 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:55:53,538 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2021-11-21 00:55:53,539 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2021-11-21 00:55:53,540 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2021-11-21 00:55:53,540 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_d5ebb0b6-421e-4814-8a71-9c44c8167d25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2021-11-21 00:55:53,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:55:54,260 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:55:54,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54 WrapperNode [2021-11-21 00:55:54,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:55:54,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:55:54,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:55:54,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:55:54,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:54,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:56,124 INFO L137 Inliner]: procedures = 730, calls = 16220, calls flagged for inlining = 402, calls inlined = 349, statements flattened = 28817 [2021-11-21 00:55:56,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:55:56,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:55:56,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:55:56,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:55:56,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:56,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:56,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:56,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:57,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:57,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:57,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:58,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:55:58,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:55:58,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:55:58,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:55:58,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (1/1) ... [2021-11-21 00:55:58,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:55:58,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:55:58,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:55:58,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-21 00:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-21 00:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 00:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 00:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-21 00:55:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-21 00:55:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-21 00:55:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-21 00:55:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 00:55:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 00:55:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-21 00:55:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-21 00:55:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:55:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:55:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-21 00:55:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-21 00:55:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 00:55:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 00:55:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:55:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:55:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-21 00:55:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-21 00:55:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-21 00:55:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-21 00:55:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:55:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:55:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-21 00:55:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-21 00:55:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-21 00:55:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-21 00:55:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-21 00:55:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-21 00:55:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:55:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:55:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-21 00:55:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-21 00:55:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 00:55:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 00:55:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-21 00:55:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-21 00:55:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:55:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:55:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-21 00:55:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-21 00:55:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:55:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:55:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:55:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:55:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-21 00:55:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-21 00:55:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-21 00:55:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-21 00:55:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 00:55:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 00:55:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-21 00:55:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-21 00:55:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-21 00:55:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-21 00:55:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:55:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:55:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-21 00:55:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-21 00:55:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-21 00:55:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-21 00:55:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-21 00:55:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-21 00:55:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-21 00:55:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-21 00:55:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:55:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:55:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:55:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:55:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:55:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:55:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:55:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:55:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:55:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:55:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:55:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:55:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 00:55:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 00:55:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 00:55:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 00:55:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:55:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:55:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:55:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:55:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:55:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-21 00:55:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-21 00:55:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-21 00:55:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-21 00:55:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-21 00:55:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-21 00:55:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-21 00:55:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-21 00:55:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:55:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:55:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-21 00:55:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-21 00:55:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 00:55:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 00:55:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-21 00:55:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-21 00:55:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-21 00:55:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-21 00:55:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-21 00:55:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-21 00:55:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:55:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:55:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:55:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:55:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-21 00:55:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-21 00:55:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-21 00:55:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-21 00:55:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:55:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 00:55:58,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 00:55:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-21 00:55:58,382 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-21 00:55:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-21 00:55:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-21 00:55:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-21 00:55:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-21 00:55:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:55:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:55:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-21 00:55:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:55:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-21 00:55:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:55:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:55:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-21 00:55:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-21 00:55:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-21 00:55:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-21 00:55:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-21 00:55:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-21 00:55:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:55:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:55:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-21 00:55:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-21 00:55:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-21 00:55:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-21 00:55:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:55:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:55:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-21 00:55:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-21 00:55:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:55:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:55:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:55:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:55:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-21 00:55:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-21 00:55:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:55:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:55:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-21 00:55:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-21 00:55:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-21 00:55:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-21 00:55:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 00:55:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 00:55:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:55:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:55:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-21 00:55:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-21 00:55:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-21 00:55:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-21 00:55:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-21 00:55:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-21 00:55:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-21 00:55:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-21 00:55:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-21 00:55:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-21 00:55:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:55:58,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:55:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:55:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:55:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:55:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-21 00:55:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-21 00:55:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 00:55:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 00:55:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:55:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:55:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:55:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:55:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:55:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:55:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:55:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:55:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-21 00:55:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-21 00:55:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:55:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 00:55:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 00:55:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:55:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:55:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-21 00:55:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-21 00:55:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-21 00:55:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-21 00:55:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-21 00:55:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-21 00:55:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-21 00:55:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-21 00:55:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:55:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:55:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-21 00:55:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-21 00:55:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-21 00:55:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-21 00:55:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-21 00:55:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-21 00:55:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 00:55:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 00:55:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 00:55:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 00:55:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:55:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:55:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-21 00:55:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-21 00:55:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:55:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:55:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-21 00:55:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-21 00:55:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-21 00:55:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-21 00:55:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:55:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:55:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-21 00:55:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-21 00:55:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-21 00:55:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-21 00:55:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-21 00:55:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-21 00:55:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 00:55:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 00:55:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-21 00:55:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-21 00:55:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-21 00:55:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-21 00:55:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-21 00:55:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-21 00:55:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:55:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:55:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:55:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:55:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-21 00:55:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-21 00:55:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-21 00:55:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-21 00:55:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-21 00:55:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-21 00:55:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-21 00:55:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-21 00:55:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:55:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:55:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-21 00:55:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-21 00:55:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:55:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:55:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-21 00:55:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-21 00:55:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-21 00:55:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-21 00:55:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-21 00:55:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-21 00:55:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:55:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:55:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-21 00:55:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-21 00:55:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:55:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:55:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:55:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:55:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 00:55:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 00:55:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:55:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:55:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 00:55:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 00:55:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-21 00:55:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-21 00:55:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:55:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:55:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:55:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 00:55:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 00:55:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:55:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:55:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-21 00:55:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-21 00:55:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 00:55:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 00:55:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 00:55:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 00:55:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-21 00:55:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-21 00:55:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 00:55:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 00:55:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:55:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:55:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 00:55:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 00:55:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-21 00:55:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-21 00:55:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-21 00:55:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-21 00:55:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-21 00:55:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-21 00:55:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:55:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:55:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-21 00:55:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-21 00:55:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-21 00:55:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-21 00:55:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-21 00:55:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-21 00:55:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 00:55:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 00:55:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-21 00:55:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-21 00:55:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-21 00:55:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-21 00:55:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 00:55:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 00:55:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:55:58,445 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:55:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 00:55:58,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 00:55:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 00:55:58,445 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 00:55:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:55:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:55:58,445 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:55:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:55:58,446 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:55:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:55:58,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:55:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-21 00:55:58,446 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-21 00:55:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:55:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 00:55:58,447 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 00:55:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:55:58,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:55:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 00:55:58,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 00:55:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-21 00:55:58,447 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-21 00:55:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-21 00:55:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-21 00:55:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-21 00:55:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-21 00:55:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:55:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-21 00:55:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-21 00:55:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-21 00:55:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-21 00:55:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-21 00:55:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-21 00:55:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:55:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:55:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-21 00:55:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-21 00:55:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-21 00:55:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-21 00:55:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-21 00:55:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-21 00:55:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:55:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:55:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 00:55:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 00:55:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:55:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:55:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:55:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:55:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-21 00:55:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-21 00:55:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 00:55:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 00:55:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-21 00:55:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-21 00:55:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-21 00:55:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-21 00:55:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-21 00:55:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-21 00:55:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-21 00:55:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-21 00:55:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-21 00:55:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-21 00:55:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-21 00:55:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-21 00:55:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-21 00:55:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-21 00:55:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-21 00:55:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-21 00:55:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 00:55:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 00:55:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:55:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:55:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:55:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:55:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-21 00:55:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-21 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-21 00:55:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-21 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-21 00:55:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-21 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-21 00:55:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-21 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-21 00:55:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-21 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 00:55:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:55:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-21 00:55:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-21 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:55:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 00:55:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:55:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-21 00:55:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-21 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-21 00:55:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-21 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-21 00:55:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-21 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:55:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-21 00:55:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-21 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-21 00:55:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-21 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-21 00:55:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-21 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:55:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-21 00:55:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-21 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:55:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-21 00:55:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-21 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-21 00:55:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-21 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:55:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-21 00:55:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-21 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-21 00:55:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-21 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-21 00:55:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-21 00:55:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-21 00:55:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-21 00:55:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:55:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:55:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2021-11-21 00:55:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2021-11-21 00:55:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-21 00:55:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-21 00:55:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-21 00:55:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-21 00:55:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-21 00:55:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-21 00:55:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:55:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:55:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 00:55:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 00:55:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:55:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:55:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:55:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:55:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-21 00:55:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-21 00:55:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-21 00:55:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-21 00:55:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:55:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:55:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-21 00:55:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-21 00:55:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:55:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:55:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 00:55:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 00:55:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 00:55:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 00:55:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 00:55:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 00:55:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 00:55:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:55:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-21 00:55:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-21 00:55:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-21 00:55:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-21 00:55:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:55:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:55:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-21 00:56:01,156 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:56:01,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:56:02,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:57:14,408 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:57:14,785 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:57:25,040 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:57:25,041 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-21 00:57:25,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:25 BoogieIcfgContainer [2021-11-21 00:57:25,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:57:25,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:57:25,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:57:25,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:57:25,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:55:40" (1/3) ... [2021-11-21 00:57:25,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e82016f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:25, skipping insertion in model container [2021-11-21 00:57:25,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:55:54" (2/3) ... [2021-11-21 00:57:25,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e82016f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:25, skipping insertion in model container [2021-11-21 00:57:25,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:25" (3/3) ... [2021-11-21 00:57:25,076 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 00:57:25,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:57:25,083 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:57:25,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:57:25,207 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 00:57:25,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:57:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) [2021-11-21 00:57:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-21 00:57:25,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:57:25,402 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:25,403 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:57:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:57:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2057095721, now seen corresponding path program 1 times [2021-11-21 00:57:25,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:57:25,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710354124] [2021-11-21 00:57:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:57:25,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:57:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:57:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2021-11-21 00:57:27,266 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:57:27,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710354124] [2021-11-21 00:57:27,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710354124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:57:27,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:57:27,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:57:27,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960181518] [2021-11-21 00:57:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:57:27,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:57:27,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:57:27,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:57:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:57:27,343 INFO L87 Difference]: Start difference. First operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 00:57:36,881 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 00:57:42,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:57:45,085 WARN L515 Checker$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 00:57:49,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:57:52,250 WARN L515 Checker$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 00:57:54,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:57:56,443 WARN L515 Checker$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 00:57:58,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:01,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:01,587 INFO L93 Difference]: Finished difference Result 19507 states and 29426 transitions. [2021-11-21 00:58:01,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:58:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2021-11-21 00:58:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:01,754 INFO L225 Difference]: With dead ends: 19507 [2021-11-21 00:58:01,754 INFO L226 Difference]: Without dead ends: 12820 [2021-11-21 00:58:01,830 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 00:58:01,833 INFO L933 BasicCegarLoop]: 11228 mSDtfsCounter, 9192 mSDsluCounter, 10047 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9195 SdHoareTripleChecker+Valid, 20418 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:01,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9195 Valid, 20418 Invalid, 1768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1753 Invalid, 8 Unknown, 0 Unchecked, 33.2s Time] [2021-11-21 00:58:01,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12820 states. [2021-11-21 00:58:03,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12820 to 12811. [2021-11-21 00:58:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12811 states, 8170 states have (on average 1.3368421052631578) internal successors, (10922), 8351 states have internal predecessors, (10922), 4161 states have call successors, (4161), 480 states have call predecessors, (4161), 479 states have return successors, (4160), 4140 states have call predecessors, (4160), 4157 states have call successors, (4160) [2021-11-21 00:58:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12811 states to 12811 states and 19243 transitions. [2021-11-21 00:58:03,409 INFO L78 Accepts]: Start accepts. Automaton has 12811 states and 19243 transitions. Word has length 251 [2021-11-21 00:58:03,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:03,411 INFO L470 AbstractCegarLoop]: Abstraction has 12811 states and 19243 transitions. [2021-11-21 00:58:03,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 00:58:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12811 states and 19243 transitions. [2021-11-21 00:58:03,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-21 00:58:03,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:03,426 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:58:03,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:58:03,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash -287070739, now seen corresponding path program 1 times [2021-11-21 00:58:03,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:03,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683886039] [2021-11-21 00:58:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:03,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:58:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2021-11-21 00:58:04,420 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683886039] [2021-11-21 00:58:04,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683886039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:04,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:58:04,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020332446] [2021-11-21 00:58:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:04,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:58:04,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:04,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:58:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:58:04,424 INFO L87 Difference]: Start difference. First operand 12811 states and 19243 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 00:58:17,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:24,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:27,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:32,428 WARN L515 Checker$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 00:58:34,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:36,775 WARN L515 Checker$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 00:58:39,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:42,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:58:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:58:43,220 INFO L93 Difference]: Finished difference Result 19050 states and 28590 transitions. [2021-11-21 00:58:43,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:58:43,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 293 [2021-11-21 00:58:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:58:43,571 INFO L225 Difference]: With dead ends: 19050 [2021-11-21 00:58:43,571 INFO L226 Difference]: Without dead ends: 19048 [2021-11-21 00:58:43,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:58:43,583 INFO L933 BasicCegarLoop]: 11263 mSDtfsCounter, 9336 mSDsluCounter, 34281 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9339 SdHoareTripleChecker+Valid, 42923 SdHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:58:43,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9339 Valid, 42923 Invalid, 3517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3508 Invalid, 7 Unknown, 0 Unchecked, 38.0s Time] [2021-11-21 00:58:43,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19048 states. [2021-11-21 00:58:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19048 to 19038. [2021-11-21 00:58:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19038 states, 12113 states have (on average 1.3351770824733757) internal successors, (16173), 12385 states have internal predecessors, (16173), 6203 states have call successors, (6203), 723 states have call predecessors, (6203), 721 states have return successors, (6199), 6170 states have call predecessors, (6199), 6195 states have call successors, (6199) [2021-11-21 00:58:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19038 states to 19038 states and 28575 transitions. [2021-11-21 00:58:45,338 INFO L78 Accepts]: Start accepts. Automaton has 19038 states and 28575 transitions. Word has length 293 [2021-11-21 00:58:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:58:45,339 INFO L470 AbstractCegarLoop]: Abstraction has 19038 states and 28575 transitions. [2021-11-21 00:58:45,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 00:58:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 19038 states and 28575 transitions. [2021-11-21 00:58:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-21 00:58:45,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:58:45,354 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:45,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:58:45,354 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:58:45,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:58:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1805479825, now seen corresponding path program 1 times [2021-11-21 00:58:45,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:58:45,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446921735] [2021-11-21 00:58:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:58:45,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:58:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:58:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2021-11-21 00:58:46,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:58:46,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446921735] [2021-11-21 00:58:46,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446921735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:58:46,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:58:46,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:58:46,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095570590] [2021-11-21 00:58:46,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:58:46,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:58:46,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:58:46,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:58:46,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:58:46,688 INFO L87 Difference]: Start difference. First operand 19038 states and 28575 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:58:58,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:07,568 WARN L515 Checker$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 00:59:12,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:14,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:17,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:19,956 WARN L515 Checker$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 00:59:22,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:26,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:28,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:59:28,847 INFO L93 Difference]: Finished difference Result 25219 states and 37833 transitions. [2021-11-21 00:59:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:59:28,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 298 [2021-11-21 00:59:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:59:29,005 INFO L225 Difference]: With dead ends: 25219 [2021-11-21 00:59:29,005 INFO L226 Difference]: Without dead ends: 25215 [2021-11-21 00:59:29,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:59:29,029 INFO L933 BasicCegarLoop]: 11237 mSDtfsCounter, 9239 mSDsluCounter, 34219 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9241 SdHoareTripleChecker+Valid, 42839 SdHoareTripleChecker+Invalid, 3511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:59:29,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9241 Valid, 42839 Invalid, 3511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3500 Invalid, 9 Unknown, 0 Unchecked, 41.4s Time] [2021-11-21 00:59:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25215 states. [2021-11-21 00:59:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25215 to 25204. [2021-11-21 00:59:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25204 states, 16018 states have (on average 1.3344986889749033) internal successors, (21376), 16381 states have internal predecessors, (21376), 8223 states have call successors, (8223), 966 states have call predecessors, (8223), 962 states have return successors, (8216), 8177 states have call predecessors, (8216), 8211 states have call successors, (8216) [2021-11-21 00:59:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25204 states to 25204 states and 37815 transitions. [2021-11-21 00:59:31,365 INFO L78 Accepts]: Start accepts. Automaton has 25204 states and 37815 transitions. Word has length 298 [2021-11-21 00:59:31,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:59:31,368 INFO L470 AbstractCegarLoop]: Abstraction has 25204 states and 37815 transitions. [2021-11-21 00:59:31,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:59:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 25204 states and 37815 transitions. [2021-11-21 00:59:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-21 00:59:31,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:59:31,384 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:59:31,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:59:31,384 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:59:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:59:31,385 INFO L85 PathProgramCache]: Analyzing trace with hash -706960946, now seen corresponding path program 1 times [2021-11-21 00:59:31,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:59:31,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866394410] [2021-11-21 00:59:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:59:31,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:59:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:59:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2259 trivial. 0 not checked. [2021-11-21 00:59:32,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:59:32,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866394410] [2021-11-21 00:59:32,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866394410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:59:32,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:59:32,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:59:32,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798249101] [2021-11-21 00:59:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:59:32,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:59:32,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:59:32,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:59:32,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:59:32,277 INFO L87 Difference]: Start difference. First operand 25204 states and 37815 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-21 00:59:44,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:46,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:50,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:52,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:59:54,854 WARN L515 Checker$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 00:59:58,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:00,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:01,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:03,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:05,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:07,873 WARN L515 Checker$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 01:00:14,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:15,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:18,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:20,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:22,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:00:23,074 INFO L93 Difference]: Finished difference Result 31650 states and 47489 transitions. [2021-11-21 01:00:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:00:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 307 [2021-11-21 01:00:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:00:23,303 INFO L225 Difference]: With dead ends: 31650 [2021-11-21 01:00:23,303 INFO L226 Difference]: Without dead ends: 31618 [2021-11-21 01:00:23,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:00:23,346 INFO L933 BasicCegarLoop]: 11285 mSDtfsCounter, 9649 mSDsluCounter, 34303 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9652 SdHoareTripleChecker+Valid, 42983 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:00:23,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9652 Valid, 42983 Invalid, 3490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3479 Invalid, 9 Unknown, 0 Unchecked, 50.0s Time] [2021-11-21 01:00:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31618 states. [2021-11-21 01:00:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31618 to 31608. [2021-11-21 01:00:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31608 states, 20111 states have (on average 1.3356372134652679) internal successors, (26861), 20566 states have internal predecessors, (26861), 10290 states have call successors, (10290), 1208 states have call predecessors, (10290), 1206 states have return successors, (10288), 10234 states have call predecessors, (10288), 10278 states have call successors, (10288) [2021-11-21 01:00:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31608 states to 31608 states and 47439 transitions. [2021-11-21 01:00:25,969 INFO L78 Accepts]: Start accepts. Automaton has 31608 states and 47439 transitions. Word has length 307 [2021-11-21 01:00:25,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:00:25,983 INFO L470 AbstractCegarLoop]: Abstraction has 31608 states and 47439 transitions. [2021-11-21 01:00:25,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-21 01:00:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 31608 states and 47439 transitions. [2021-11-21 01:00:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-21 01:00:26,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:00:26,067 INFO L514 BasicCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:00:26,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:00:26,067 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:00:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:00:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1836696556, now seen corresponding path program 1 times [2021-11-21 01:00:26,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:00:26,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190952801] [2021-11-21 01:00:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:00:26,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:00:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:00:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2021-11-21 01:00:27,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:00:27,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190952801] [2021-11-21 01:00:27,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190952801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:00:27,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:00:27,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:00:27,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614778311] [2021-11-21 01:00:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:00:27,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:00:27,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:00:27,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:00:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:00:27,134 INFO L87 Difference]: Start difference. First operand 31608 states and 47439 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-21 01:00:31,056 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 01:00:38,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:42,087 WARN L515 Checker$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 01:00:45,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:49,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:52,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:54,336 WARN L515 Checker$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 01:00:57,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:00:58,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:00:58,040 INFO L93 Difference]: Finished difference Result 85450 states and 128274 transitions. [2021-11-21 01:00:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:00:58,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 411 [2021-11-21 01:00:58,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:00:58,596 INFO L225 Difference]: With dead ends: 85450 [2021-11-21 01:00:58,596 INFO L226 Difference]: Without dead ends: 53889 [2021-11-21 01:00:58,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:00:58,803 INFO L933 BasicCegarLoop]: 11282 mSDtfsCounter, 7682 mSDsluCounter, 10014 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 19 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7696 SdHoareTripleChecker+Valid, 20443 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:00:58,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7696 Valid, 20443 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1850 Invalid, 8 Unknown, 0 Unchecked, 29.4s Time] [2021-11-21 01:00:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53889 states. [2021-11-21 01:01:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53889 to 53847. [2021-11-21 01:01:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53847 states, 34402 states have (on average 1.3355909540143014) internal successors, (45947), 35145 states have internal predecessors, (45947), 17413 states have call successors, (17413), 2040 states have call predecessors, (17413), 2031 states have return successors, (17420), 17307 states have call predecessors, (17420), 17401 states have call successors, (17420) [2021-11-21 01:01:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53847 states to 53847 states and 80780 transitions. [2021-11-21 01:01:02,865 INFO L78 Accepts]: Start accepts. Automaton has 53847 states and 80780 transitions. Word has length 411 [2021-11-21 01:01:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:01:02,874 INFO L470 AbstractCegarLoop]: Abstraction has 53847 states and 80780 transitions. [2021-11-21 01:01:02,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-21 01:01:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 53847 states and 80780 transitions. [2021-11-21 01:01:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-11-21 01:01:03,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:03,043 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:01:03,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:01:03,044 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:01:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1843529167, now seen corresponding path program 1 times [2021-11-21 01:01:03,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:03,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29385202] [2021-11-21 01:01:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:03,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:01:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2021-11-21 01:01:03,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:01:03,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29385202] [2021-11-21 01:01:03,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29385202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:01:03,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:01:03,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:01:03,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127661805] [2021-11-21 01:01:03,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:01:03,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:01:03,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:01:03,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:01:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:01:03,903 INFO L87 Difference]: Start difference. First operand 53847 states and 80780 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-21 01:01:08,443 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 01:01:19,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:21,913 WARN L515 Checker$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 01:01:23,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:25,275 WARN L515 Checker$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 01:01:26,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:30,551 WARN L515 Checker$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 01:01:32,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:34,743 WARN L515 Checker$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 01:01:37,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:40,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:01:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:01:41,226 INFO L93 Difference]: Finished difference Result 120124 states and 180135 transitions. [2021-11-21 01:01:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:01:41,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 458 [2021-11-21 01:01:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:01:41,852 INFO L225 Difference]: With dead ends: 120124 [2021-11-21 01:01:41,853 INFO L226 Difference]: Without dead ends: 74211 [2021-11-21 01:01:42,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:01:42,135 INFO L933 BasicCegarLoop]: 16119 mSDtfsCounter, 7585 mSDsluCounter, 10010 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 15 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7598 SdHoareTripleChecker+Valid, 25278 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:01:42,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7598 Valid, 25278 Invalid, 2488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2464 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2021-11-21 01:01:42,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74211 states. [2021-11-21 01:01:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74211 to 74164. [2021-11-21 01:01:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74164 states, 47385 states have (on average 1.335338187190039) internal successors, (63275), 48417 states have internal predecessors, (63275), 23955 states have call successors, (23955), 2839 states have call predecessors, (23955), 2823 states have return successors, (23967), 23797 states have call predecessors, (23967), 23943 states have call successors, (23967) [2021-11-21 01:01:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74164 states to 74164 states and 111197 transitions. [2021-11-21 01:01:47,471 INFO L78 Accepts]: Start accepts. Automaton has 74164 states and 111197 transitions. Word has length 458 [2021-11-21 01:01:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:01:47,472 INFO L470 AbstractCegarLoop]: Abstraction has 74164 states and 111197 transitions. [2021-11-21 01:01:47,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-21 01:01:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 74164 states and 111197 transitions. [2021-11-21 01:01:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-21 01:01:47,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:47,847 INFO L514 BasicCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:01:47,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:01:47,847 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:01:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash -864302445, now seen corresponding path program 1 times [2021-11-21 01:01:47,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:47,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774253085] [2021-11-21 01:01:47,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:47,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:01:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2021-11-21 01:01:49,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:01:49,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774253085] [2021-11-21 01:01:49,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774253085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:01:49,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:01:49,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:01:49,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698638696] [2021-11-21 01:01:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:01:49,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:01:49,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:01:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:01:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:01:49,185 INFO L87 Difference]: Start difference. First operand 74164 states and 111197 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-21 01:01:56,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:06,287 WARN L515 Checker$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 01:02:10,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:12,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:15,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:20,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:22,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:25,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:27,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:31,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:34,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:02:35,771 INFO L93 Difference]: Finished difference Result 170846 states and 259048 transitions. [2021-11-21 01:02:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:02:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 520 [2021-11-21 01:02:35,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:02:36,559 INFO L225 Difference]: With dead ends: 170846 [2021-11-21 01:02:36,560 INFO L226 Difference]: Without dead ends: 104616 [2021-11-21 01:02:36,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:02:36,841 INFO L933 BasicCegarLoop]: 11689 mSDtfsCounter, 3647 mSDsluCounter, 22904 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 994 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4151 SdHoareTripleChecker+Valid, 32586 SdHoareTripleChecker+Invalid, 4173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:02:36,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4151 Valid, 32586 Invalid, 4173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 3170 Invalid, 9 Unknown, 0 Unchecked, 42.7s Time] [2021-11-21 01:02:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104616 states. [2021-11-21 01:02:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104616 to 74172. [2021-11-21 01:02:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74172 states, 47393 states have (on average 1.335281581668179) internal successors, (63283), 48425 states have internal predecessors, (63283), 23955 states have call successors, (23955), 2839 states have call predecessors, (23955), 2823 states have return successors, (23967), 23797 states have call predecessors, (23967), 23943 states have call successors, (23967) [2021-11-21 01:02:43,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74172 states to 74172 states and 111205 transitions. [2021-11-21 01:02:44,009 INFO L78 Accepts]: Start accepts. Automaton has 74172 states and 111205 transitions. Word has length 520 [2021-11-21 01:02:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:02:44,013 INFO L470 AbstractCegarLoop]: Abstraction has 74172 states and 111205 transitions. [2021-11-21 01:02:44,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-21 01:02:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand 74172 states and 111205 transitions. [2021-11-21 01:02:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-21 01:02:44,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:02:44,112 INFO L514 BasicCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:02:44,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:02:44,112 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:02:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:02:44,113 INFO L85 PathProgramCache]: Analyzing trace with hash 665206250, now seen corresponding path program 1 times [2021-11-21 01:02:44,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:02:44,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229646289] [2021-11-21 01:02:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:02:44,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:02:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:02:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3318 trivial. 0 not checked. [2021-11-21 01:02:45,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:02:45,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229646289] [2021-11-21 01:02:45,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229646289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:02:45,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:02:45,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:02:45,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612469054] [2021-11-21 01:02:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:02:45,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:02:45,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:02:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:02:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:02:45,450 INFO L87 Difference]: Start difference. First operand 74172 states and 111205 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-21 01:02:57,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:00,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:04,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:06,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:10,417 WARN L515 Checker$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 01:03:11,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:13,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:15,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:17,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:20,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:22,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:27,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:31,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:34,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:35,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:03:35,077 INFO L93 Difference]: Finished difference Result 90898 states and 136265 transitions. [2021-11-21 01:03:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:03:35,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 537 [2021-11-21 01:03:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:03:35,681 INFO L225 Difference]: With dead ends: 90898 [2021-11-21 01:03:35,681 INFO L226 Difference]: Without dead ends: 90894 [2021-11-21 01:03:35,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:03:35,721 INFO L933 BasicCegarLoop]: 11307 mSDtfsCounter, 9626 mSDsluCounter, 34359 mSDsCounter, 0 mSdLazyCounter, 3491 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9631 SdHoareTripleChecker+Valid, 43054 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3491 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:03:35,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9631 Valid, 43054 Invalid, 3503 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3491 Invalid, 10 Unknown, 0 Unchecked, 47.4s Time] [2021-11-21 01:03:35,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90894 states. [2021-11-21 01:03:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90894 to 90835. [2021-11-21 01:03:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90835 states, 58041 states have (on average 1.3353836081390742) internal successors, (77507), 59310 states have internal predecessors, (77507), 29331 states have call successors, (29331), 3482 states have call predecessors, (29331), 3462 states have return successors, (29352), 29134 states have call predecessors, (29352), 29319 states have call successors, (29352) [2021-11-21 01:03:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90835 states to 90835 states and 136190 transitions. [2021-11-21 01:03:42,588 INFO L78 Accepts]: Start accepts. Automaton has 90835 states and 136190 transitions. Word has length 537 [2021-11-21 01:03:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:03:42,589 INFO L470 AbstractCegarLoop]: Abstraction has 90835 states and 136190 transitions. [2021-11-21 01:03:42,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-21 01:03:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 90835 states and 136190 transitions. [2021-11-21 01:03:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-11-21 01:03:42,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:42,712 INFO L514 BasicCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:42,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:03:42,712 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash 704934428, now seen corresponding path program 1 times [2021-11-21 01:03:42,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:42,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420081686] [2021-11-21 01:03:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:42,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3360 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3358 trivial. 0 not checked. [2021-11-21 01:03:44,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:44,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420081686] [2021-11-21 01:03:44,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420081686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:44,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:44,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:03:44,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682627315] [2021-11-21 01:03:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:44,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:03:44,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:44,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:03:44,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:03:44,230 INFO L87 Difference]: Start difference. First operand 90835 states and 136190 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-21 01:03:50,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:52,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:01,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:02,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:04,635 WARN L515 Checker$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 01:04:07,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:11,911 WARN L515 Checker$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 01:04:13,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:16,235 WARN L515 Checker$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 01:04:25,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:28,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:30,718 INFO L93 Difference]: Finished difference Result 90849 states and 136201 transitions. [2021-11-21 01:04:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:04:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 545 [2021-11-21 01:04:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:31,232 INFO L225 Difference]: With dead ends: 90849 [2021-11-21 01:04:31,232 INFO L226 Difference]: Without dead ends: 90813 [2021-11-21 01:04:31,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:04:31,285 INFO L933 BasicCegarLoop]: 11279 mSDtfsCounter, 9524 mSDsluCounter, 34293 mSDsCounter, 0 mSdLazyCounter, 3480 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9525 SdHoareTripleChecker+Valid, 42967 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3480 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:31,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9525 Valid, 42967 Invalid, 3490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3480 Invalid, 8 Unknown, 0 Unchecked, 43.7s Time] [2021-11-21 01:04:31,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90813 states. [2021-11-21 01:04:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90813 to 90804. [2021-11-21 01:04:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90804 states, 58034 states have (on average 1.3352689802529552) internal successors, (77491), 59296 states have internal predecessors, (77491), 29308 states have call successors, (29308), 3476 states have call predecessors, (29308), 3461 states have return successors, (29332), 29123 states have call predecessors, (29332), 29300 states have call successors, (29332) [2021-11-21 01:04:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90804 states to 90804 states and 136131 transitions. [2021-11-21 01:04:38,020 INFO L78 Accepts]: Start accepts. Automaton has 90804 states and 136131 transitions. Word has length 545 [2021-11-21 01:04:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:38,021 INFO L470 AbstractCegarLoop]: Abstraction has 90804 states and 136131 transitions. [2021-11-21 01:04:38,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-21 01:04:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 90804 states and 136131 transitions. [2021-11-21 01:04:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2021-11-21 01:04:38,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:38,339 INFO L514 BasicCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 14, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:04:38,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:04:38,340 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:38,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1752456342, now seen corresponding path program 1 times [2021-11-21 01:04:38,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:38,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678673636] [2021-11-21 01:04:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:38,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:38,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:04:38,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368925357] [2021-11-21 01:04:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:38,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:04:38,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:04:38,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:04:38,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:04:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:43,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 19206 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:04:43,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:04:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3608 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 3278 trivial. 0 not checked. [2021-11-21 01:04:45,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:04:45,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:45,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678673636] [2021-11-21 01:04:45,837 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:04:45,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368925357] [2021-11-21 01:04:45,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368925357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:45,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:45,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:45,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213133221] [2021-11-21 01:04:45,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:45,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:45,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:45,841 INFO L87 Difference]: Start difference. First operand 90804 states and 136131 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 3 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2021-11-21 01:04:51,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:56,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:59,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:02,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:04,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:08,585 WARN L515 Checker$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 01:05:10,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:12,854 WARN L515 Checker$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 01:05:16,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:22,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:05:22,985 INFO L93 Difference]: Finished difference Result 111600 states and 167683 transitions. [2021-11-21 01:05:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:05:22,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 3 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 899 [2021-11-21 01:05:22,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:05:23,831 INFO L225 Difference]: With dead ends: 111600 [2021-11-21 01:05:23,831 INFO L226 Difference]: Without dead ends: 94706 [2021-11-21 01:05:23,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:05:23,953 INFO L933 BasicCegarLoop]: 11190 mSDtfsCounter, 1227 mSDsluCounter, 10583 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 20908 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:05:23,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 20908 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2026 Invalid, 8 Unknown, 0 Unchecked, 33.8s Time] [2021-11-21 01:05:24,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94706 states. [2021-11-21 01:05:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94706 to 90809. [2021-11-21 01:05:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90809 states, 58038 states have (on average 1.3352631034839244) internal successors, (77496), 59300 states have internal predecessors, (77496), 29309 states have call successors, (29309), 3476 states have call predecessors, (29309), 3461 states have return successors, (29333), 29124 states have call predecessors, (29333), 29301 states have call successors, (29333) [2021-11-21 01:05:32,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90809 states to 90809 states and 136138 transitions. [2021-11-21 01:05:32,327 INFO L78 Accepts]: Start accepts. Automaton has 90809 states and 136138 transitions. Word has length 899 [2021-11-21 01:05:32,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:05:32,330 INFO L470 AbstractCegarLoop]: Abstraction has 90809 states and 136138 transitions. [2021-11-21 01:05:32,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 3 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2021-11-21 01:05:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand 90809 states and 136138 transitions. [2021-11-21 01:05:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2021-11-21 01:05:32,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:05:32,712 INFO L514 BasicCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 17, 15, 15, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:05:32,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:05:32,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:05:32,915 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:05:32,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:05:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash -418221703, now seen corresponding path program 1 times [2021-11-21 01:05:32,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:05:32,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674325655] [2021-11-21 01:05:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:05:32,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:05:33,418 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:05:33,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636250019] [2021-11-21 01:05:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:05:33,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:05:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:05:33,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:05:33,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ebb0b6-421e-4814-8a71-9c44c8167d25/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:05:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:05:38,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 19490 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:05:38,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:05:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3736 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 3478 trivial. 0 not checked. [2021-11-21 01:05:41,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:05:41,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:05:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674325655] [2021-11-21 01:05:41,637 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:05:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636250019] [2021-11-21 01:05:41,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636250019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:05:41,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:05:41,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:05:41,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442464132] [2021-11-21 01:05:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:05:41,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:05:41,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:05:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:05:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:05:41,642 INFO L87 Difference]: Start difference. First operand 90809 states and 136138 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 2 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2021-11-21 01:05:56,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:06:00,356 WARN L515 Checker$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 01:06:05,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:06:07,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []