./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-wireless-libertas-libertas.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_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/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_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/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-wireless-libertas-libertas.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/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_c2ab86bc-ac22-4d96-af5f-addb8816b005/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 93890a4149f8ccc72c347448d790772c96dc9af5fdcf5ec8f5816140f9ba24c6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:38:25,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:38:25,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:38:25,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:38:25,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:38:25,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:38:25,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:38:25,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:38:25,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:38:25,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:38:25,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:38:25,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:38:25,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:38:25,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:38:25,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:38:25,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:38:25,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:38:25,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:38:25,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:38:25,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:38:25,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:38:25,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:38:25,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:38:25,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:38:25,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:38:25,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:38:25,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:38:25,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:38:25,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:38:25,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:38:25,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:38:25,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:38:25,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:38:25,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:38:25,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:38:25,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:38:25,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:38:25,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:38:25,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:38:25,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:38:25,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:38:25,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:38:25,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:38:25,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:38:25,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:38:25,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:38:25,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:38:25,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:38:25,241 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:38:25,241 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:38:25,241 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:38:25,242 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:38:25,243 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:38:25,243 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:38:25,243 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:38:25,243 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:38:25,243 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:38:25,244 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:38:25,244 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:38:25,244 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:38:25,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:38:25,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:38:25,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:38:25,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:38:25,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:38:25,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:38:25,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:38:25,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:38:25,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:38:25,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:38:25,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:38:25,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:38:25,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:38:25,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:38:25,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:38:25,251 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93890a4149f8ccc72c347448d790772c96dc9af5fdcf5ec8f5816140f9ba24c6 [2021-11-20 23:38:25,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:38:25,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:38:25,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:38:25,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:38:25,548 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:38:25,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-20 23:38:25,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/data/18d35ad5d/6b787dc2369a4144bcfa93893eead356/FLAGf0e5b4ff8 [2021-11-20 23:38:26,965 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:38:26,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-20 23:38:27,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/data/18d35ad5d/6b787dc2369a4144bcfa93893eead356/FLAGf0e5b4ff8 [2021-11-20 23:38:27,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/data/18d35ad5d/6b787dc2369a4144bcfa93893eead356 [2021-11-20 23:38:27,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:38:27,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:38:27,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:38:27,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:38:27,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:38:27,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:27" (1/1) ... [2021-11-20 23:38:27,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132a696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:27, skipping insertion in model container [2021-11-20 23:38:27,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:27" (1/1) ... [2021-11-20 23:38:27,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:38:27,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:38:37,525 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[870923,870936] [2021-11-20 23:38:37,534 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871089,871102] [2021-11-20 23:38:37,535 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871253,871266] [2021-11-20 23:38:37,542 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871418,871431] [2021-11-20 23:38:37,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:38:37,753 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:38:38,745 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[870923,870936] [2021-11-20 23:38:38,746 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871089,871102] [2021-11-20 23:38:38,746 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871253,871266] [2021-11-20 23:38:38,747 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_c2ab86bc-ac22-4d96-af5f-addb8816b005/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[871418,871431] [2021-11-20 23:38:38,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:38:39,353 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:38:39,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39 WrapperNode [2021-11-20 23:38:39,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:38:39,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:38:39,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:38:39,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:38:39,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:39,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:40,457 INFO L137 Inliner]: procedures = 796, calls = 11384, calls flagged for inlining = 492, calls inlined = 456, statements flattened = 24363 [2021-11-20 23:38:40,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:38:40,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:38:40,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:38:40,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:38:40,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:40,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:40,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:40,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:41,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:41,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:41,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:41,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:38:41,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:38:41,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:38:41,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:38:41,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (1/1) ... [2021-11-20 23:38:41,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:38:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:38:41,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:38:41,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2ab86bc-ac22-4d96-af5f-addb8816b005/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:38:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2021-11-20 23:38:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2021-11-20 23:38:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2021-11-20 23:38:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2021-11-20 23:38:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 23:38:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-20 23:38:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-20 23:38:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2021-11-20 23:38:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2021-11-20 23:38:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:38:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:38:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2021-11-20 23:38:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2021-11-20 23:38:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2021-11-20 23:38:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2021-11-20 23:38:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-20 23:38:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-20 23:38:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-20 23:38:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-20 23:38:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_lbs_private [2021-11-20 23:38:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_lbs_private [2021-11-20 23:38:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2021-11-20 23:38:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2021-11-20 23:38:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2021-11-20 23:38:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2021-11-20 23:38:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:38:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 23:38:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 23:38:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-20 23:38:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-20 23:38:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:38:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:38:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2021-11-20 23:38:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2021-11-20 23:38:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2021-11-20 23:38:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2021-11-20 23:38:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2021-11-20 23:38:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2021-11-20 23:38:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-20 23:38:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-20 23:38:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 23:38:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 23:38:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_reg [2021-11-20 23:38:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_reg [2021-11-20 23:38:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2021-11-20 23:38:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2021-11-20 23:38:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2021-11-20 23:38:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2021-11-20 23:38:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2021-11-20 23:38:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2021-11-20 23:38:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_16_5 [2021-11-20 23:38:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_16_5 [2021-11-20 23:38:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2021-11-20 23:38:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2021-11-20 23:38:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2021-11-20 23:38:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2021-11-20 23:38:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2021-11-20 23:38:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2021-11-20 23:38:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2021-11-20 23:38:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2021-11-20 23:38:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2021-11-20 23:38:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2021-11-20 23:38:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-20 23:38:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-20 23:38:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2021-11-20 23:38:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2021-11-20 23:38:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:38:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:38:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:38:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2021-11-20 23:38:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2021-11-20 23:38:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:38:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:38:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2021-11-20 23:38:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2021-11-20 23:38:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-20 23:38:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-20 23:38:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2021-11-20 23:38:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2021-11-20 23:38:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-20 23:38:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-20 23:38:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:38:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 23:38:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 23:38:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 23:38:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 23:38:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-20 23:38:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-20 23:38:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-20 23:38:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-20 23:38:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 23:38:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 23:38:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:38:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2021-11-20 23:38:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2021-11-20 23:38:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:38:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:38:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:38:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:38:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:38:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2021-11-20 23:38:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2021-11-20 23:38:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:38:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-20 23:38:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-20 23:38:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 23:38:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 23:38:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 23:38:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 23:38:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2021-11-20 23:38:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2021-11-20 23:38:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2021-11-20 23:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2021-11-20 23:38:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:38:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2021-11-20 23:38:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2021-11-20 23:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 23:38:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 23:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:38:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2021-11-20 23:38:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2021-11-20 23:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 23:38:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 23:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2021-11-20 23:38:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2021-11-20 23:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 23:38:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 23:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:38:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 23:38:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 23:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_dummy [2021-11-20 23:38:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_dummy [2021-11-20 23:38:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2021-11-20 23:38:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2021-11-20 23:38:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:38:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:38:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2021-11-20 23:38:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2021-11-20 23:38:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-20 23:38:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-20 23:38:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 23:38:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 23:38:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:38:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:38:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:38:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_read [2021-11-20 23:38:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_read [2021-11-20 23:38:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:38:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:38:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:38:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 23:38:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 23:38:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 23:38:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 23:38:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:38:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:38:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2021-11-20 23:38:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2021-11-20 23:38:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 23:38:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 23:38:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2021-11-20 23:38:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2021-11-20 23:38:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2021-11-20 23:38:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2021-11-20 23:38:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-20 23:38:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-20 23:38:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2021-11-20 23:38:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2021-11-20 23:38:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:38:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:38:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:38:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:38:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-20 23:38:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2021-11-20 23:38:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:38:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 23:38:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 23:38:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:38:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:38:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2021-11-20 23:38:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2021-11-20 23:38:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2021-11-20 23:38:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2021-11-20 23:38:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2021-11-20 23:38:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2021-11-20 23:38:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 23:38:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 23:38:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-20 23:38:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-20 23:38:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2021-11-20 23:38:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2021-11-20 23:38:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2021-11-20 23:38:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2021-11-20 23:38:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-20 23:38:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_lbs_private [2021-11-20 23:38:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_lbs_private [2021-11-20 23:38:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-20 23:38:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-20 23:38:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:38:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:38:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2021-11-20 23:38:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2021-11-20 23:38:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-20 23:38:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-20 23:38:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:38:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:38:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 23:38:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 23:38:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-20 23:38:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-20 23:38:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2021-11-20 23:38:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2021-11-20 23:38:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:38:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:38:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-20 23:38:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-20 23:38:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_reg [2021-11-20 23:38:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_reg [2021-11-20 23:38:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:38:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:38:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:38:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:38:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:38:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:38:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-20 23:38:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-20 23:38:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-20 23:38:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2021-11-20 23:38:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2021-11-20 23:38:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-20 23:38:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-20 23:38:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:38:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-20 23:38:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-20 23:38:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_sleepparams_read [2021-11-20 23:38:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_sleepparams_read [2021-11-20 23:38:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:38:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:38:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2021-11-20 23:38:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2021-11-20 23:38:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 23:38:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 23:38:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:38:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 23:38:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 23:38:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 23:38:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 23:38:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2021-11-20 23:38:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2021-11-20 23:38:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:38:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2021-11-20 23:38:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2021-11-20 23:38:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-20 23:38:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-20 23:38:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:38:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:38:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-20 23:38:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-20 23:38:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 23:38:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 23:38:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-20 23:38:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-20 23:38:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2021-11-20 23:38:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2021-11-20 23:38:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2021-11-20 23:38:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2021-11-20 23:38:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2021-11-20 23:38:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2021-11-20 23:38:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:38:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:38:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:38:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:38:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2021-11-20 23:38:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2021-11-20 23:38:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 23:38:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 23:38:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2021-11-20 23:38:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2021-11-20 23:38:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-20 23:38:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-20 23:38:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-20 23:38:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-20 23:38:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2021-11-20 23:38:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2021-11-20 23:38:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2021-11-20 23:38:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2021-11-20 23:38:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:38:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:38:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:38:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-20 23:38:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-20 23:38:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2021-11-20 23:38:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2021-11-20 23:38:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2021-11-20 23:38:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2021-11-20 23:38:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-20 23:38:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-20 23:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_15 [2021-11-20 23:38:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_15 [2021-11-20 23:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2021-11-20 23:38:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2021-11-20 23:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2021-11-20 23:38:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2021-11-20 23:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 23:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 23:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2021-11-20 23:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2021-11-20 23:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2021-11-20 23:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2021-11-20 23:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2021-11-20 23:38:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2021-11-20 23:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 23:38:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 23:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_write [2021-11-20 23:38:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_write [2021-11-20 23:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2021-11-20 23:38:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2021-11-20 23:38:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:38:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-20 23:38:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-20 23:38:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2021-11-20 23:38:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2021-11-20 23:38:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_802_11_sleep_params [2021-11-20 23:38:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_802_11_sleep_params [2021-11-20 23:38:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2021-11-20 23:38:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2021-11-20 23:38:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2021-11-20 23:38:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2021-11-20 23:38:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-20 23:38:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-20 23:38:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:38:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:38:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-20 23:38:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-20 23:38:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2021-11-20 23:38:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2021-11-20 23:38:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2021-11-20 23:38:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2021-11-20 23:38:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:38:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:38:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:38:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:38:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-20 23:38:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-20 23:38:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2021-11-20 23:38:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2021-11-20 23:38:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2021-11-20 23:38:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2021-11-20 23:38:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:38:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:38:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-20 23:38:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-20 23:38:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2021-11-20 23:38:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2021-11-20 23:38:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2021-11-20 23:38:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2021-11-20 23:38:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2021-11-20 23:38:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2021-11-20 23:38:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 23:38:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 23:38:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-20 23:38:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-20 23:38:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2021-11-20 23:38:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2021-11-20 23:38:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_read [2021-11-20 23:38:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_read [2021-11-20 23:38:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:38:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:38:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 23:38:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 23:38:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2021-11-20 23:38:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2021-11-20 23:38:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2021-11-20 23:38:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2021-11-20 23:38:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 23:38:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 23:38:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-20 23:38:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-20 23:38:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2021-11-20 23:38:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2021-11-20 23:38:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-20 23:38:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-20 23:38:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2021-11-20 23:38:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2021-11-20 23:38:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:38:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 23:38:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 23:38:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 23:38:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 23:38:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-20 23:38:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-20 23:38:44,006 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:38:44,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:38:45,830 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:46:38,434 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 23:46:38,658 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:46:47,322 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:46:47,322 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-20 23:46:47,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:47 BoogieIcfgContainer [2021-11-20 23:46:47,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:46:47,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:46:47,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:46:47,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:46:47,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:38:27" (1/3) ... [2021-11-20 23:46:47,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14214728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:47, skipping insertion in model container [2021-11-20 23:46:47,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39" (2/3) ... [2021-11-20 23:46:47,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14214728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:47, skipping insertion in model container [2021-11-20 23:46:47,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:47" (3/3) ... [2021-11-20 23:46:47,347 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-20 23:46:47,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:46:47,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-20 23:46:47,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:46:47,425 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 [2021-11-20 23:46:47,425 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-20 23:46:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 5525 states, 3482 states have (on average 1.3449167145318783) internal successors, (4683), 3554 states have internal predecessors, (4683), 1854 states have call successors, (1854), 189 states have call predecessors, (1854), 188 states have return successors, (1847), 1835 states have call predecessors, (1847), 1847 states have call successors, (1847) [2021-11-20 23:46:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2021-11-20 23:46:47,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:47,668 INFO L514 BasicCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:46:47,669 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:46:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1135763522, now seen corresponding path program 1 times [2021-11-20 23:46:47,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:47,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858404989] [2021-11-20 23:46:47,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:47,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:51,079 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2021-11-20 23:46:51,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:51,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858404989] [2021-11-20 23:46:51,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858404989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:46:51,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:46:51,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:46:51,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009340392] [2021-11-20 23:46:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:46:51,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:46:51,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:46:51,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:46:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:46:51,145 INFO L87 Difference]: Start difference. First operand has 5525 states, 3482 states have (on average 1.3449167145318783) internal successors, (4683), 3554 states have internal predecessors, (4683), 1854 states have call successors, (1854), 189 states have call predecessors, (1854), 188 states have return successors, (1847), 1835 states have call predecessors, (1847), 1847 states have call successors, (1847) Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2021-11-20 23:46:52,755 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 [] [2021-11-20 23:46:54,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:47:01,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:47:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:04,634 INFO L93 Difference]: Finished difference Result 14545 states and 22147 transitions. [2021-11-20 23:47:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:47:04,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) Word has length 1521 [2021-11-20 23:47:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:04,780 INFO L225 Difference]: With dead ends: 14545 [2021-11-20 23:47:04,780 INFO L226 Difference]: Without dead ends: 9310 [2021-11-20 23:47:04,829 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 [2021-11-20 23:47:04,833 INFO L933 BasicCegarLoop]: 8568 mSDtfsCounter, 5822 mSDsluCounter, 8291 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5823 SdHoareTripleChecker+Valid, 15779 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:04,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5823 Valid, 15779 Invalid, 2240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2227 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 23:47:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9310 states. [2021-11-20 23:47:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9310 to 9310. [2021-11-20 23:47:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9310 states, 5880 states have (on average 1.3465986394557823) internal successors, (7918), 5995 states have internal predecessors, (7918), 3103 states have call successors, (3103), 325 states have call predecessors, (3103), 324 states have return successors, (3100), 3086 states have call predecessors, (3100), 3099 states have call successors, (3100) [2021-11-20 23:47:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9310 states to 9310 states and 14121 transitions. [2021-11-20 23:47:05,936 INFO L78 Accepts]: Start accepts. Automaton has 9310 states and 14121 transitions. Word has length 1521 [2021-11-20 23:47:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:05,946 INFO L470 AbstractCegarLoop]: Abstraction has 9310 states and 14121 transitions. [2021-11-20 23:47:05,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2021-11-20 23:47:05,949 INFO L276 IsEmpty]: Start isEmpty. Operand 9310 states and 14121 transitions. [2021-11-20 23:47:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2021-11-20 23:47:06,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:06,092 INFO L514 BasicCegarLoop]: trace histogram [153, 150, 150, 150, 150, 150, 150, 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] [2021-11-20 23:47:06,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:47:06,093 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:47:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:06,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1407820492, now seen corresponding path program 1 times [2021-11-20 23:47:06,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:06,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909313659] [2021-11-20 23:47:06,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:06,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 90310 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 90306 trivial. 0 not checked. [2021-11-20 23:47:08,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:08,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909313659] [2021-11-20 23:47:08,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909313659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:08,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:08,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:47:08,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478329238] [2021-11-20 23:47:08,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:08,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:47:08,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:08,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:47:08,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:47:08,253 INFO L87 Difference]: Start difference. First operand 9310 states and 14121 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) [2021-11-20 23:47:10,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:47:11,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:47:38,386 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 [] [2021-11-20 23:48:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:48:03,744 INFO L93 Difference]: Finished difference Result 28641 states and 43608 transitions. [2021-11-20 23:48:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:48:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) Word has length 1561 [2021-11-20 23:48:03,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:48:03,931 INFO L225 Difference]: With dead ends: 28641 [2021-11-20 23:48:03,931 INFO L226 Difference]: Without dead ends: 19632 [2021-11-20 23:48:03,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:48:03,986 INFO L933 BasicCegarLoop]: 17395 mSDtfsCounter, 16173 mSDsluCounter, 20637 mSDsCounter, 0 mSdLazyCounter, 13271 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16177 SdHoareTripleChecker+Valid, 34409 SdHoareTripleChecker+Invalid, 13287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:48:03,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16177 Valid, 34409 Invalid, 13287 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 13271 Invalid, 1 Unknown, 0 Unchecked, 54.0s Time] [2021-11-20 23:48:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19632 states. [2021-11-20 23:48:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19632 to 19600. [2021-11-20 23:48:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19600 states, 12455 states have (on average 1.3523083099156965) internal successors, (16843), 12712 states have internal predecessors, (16843), 6441 states have call successors, (6441), 701 states have call predecessors, (6441), 701 states have return successors, (6511), 6398 states have call predecessors, (6511), 6437 states have call successors, (6511) [2021-11-20 23:48:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19600 states to 19600 states and 29795 transitions. [2021-11-20 23:48:06,227 INFO L78 Accepts]: Start accepts. Automaton has 19600 states and 29795 transitions. Word has length 1561 [2021-11-20 23:48:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:48:06,231 INFO L470 AbstractCegarLoop]: Abstraction has 19600 states and 29795 transitions. [2021-11-20 23:48:06,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) [2021-11-20 23:48:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 19600 states and 29795 transitions. [2021-11-20 23:48:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2021-11-20 23:48:06,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:48:06,283 INFO L514 BasicCegarLoop]: trace histogram [154, 151, 151, 151, 151, 151, 151, 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] [2021-11-20 23:48:06,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:48:06,284 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:48:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:48:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2023622479, now seen corresponding path program 1 times [2021-11-20 23:48:06,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:48:06,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997110086] [2021-11-20 23:48:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:48:06,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:48:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:48:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 91516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91516 trivial. 0 not checked. [2021-11-20 23:48:09,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:48:09,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997110086] [2021-11-20 23:48:09,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997110086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:48:09,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:48:09,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:48:09,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221969742] [2021-11-20 23:48:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:48:09,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:48:09,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:48:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:48:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:48:09,118 INFO L87 Difference]: Start difference. First operand 19600 states and 29795 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (161), 3 states have call predecessors, (161), 1 states have return successors, (159), 2 states have call predecessors, (159), 2 states have call successors, (159) [2021-11-20 23:48:11,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:18,193 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 [] [2021-11-20 23:48:22,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:48:22,669 INFO L93 Difference]: Finished difference Result 22474 states and 33742 transitions. [2021-11-20 23:48:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:48:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (161), 3 states have call predecessors, (161), 1 states have return successors, (159), 2 states have call predecessors, (159), 2 states have call successors, (159) Word has length 1575 [2021-11-20 23:48:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:48:22,797 INFO L225 Difference]: With dead ends: 22474 [2021-11-20 23:48:22,797 INFO L226 Difference]: Without dead ends: 22472 [2021-11-20 23:48:22,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:48:22,823 INFO L933 BasicCegarLoop]: 7514 mSDtfsCounter, 6014 mSDsluCounter, 20524 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6018 SdHoareTripleChecker+Valid, 25366 SdHoareTripleChecker+Invalid, 3784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:48:22,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6018 Valid, 25366 Invalid, 3784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3781 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2021-11-20 23:48:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22472 states. [2021-11-20 23:48:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22472 to 22472. [2021-11-20 23:48:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22472 states, 14261 states have (on average 1.345978542879181) internal successors, (19195), 14581 states have internal predecessors, (19195), 7236 states have call successors, (7236), 972 states have call predecessors, (7236), 972 states have return successors, (7309), 7190 states have call predecessors, (7309), 7232 states have call successors, (7309) [2021-11-20 23:48:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22472 states to 22472 states and 33740 transitions. [2021-11-20 23:48:24,747 INFO L78 Accepts]: Start accepts. Automaton has 22472 states and 33740 transitions. Word has length 1575 [2021-11-20 23:48:24,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:48:24,749 INFO L470 AbstractCegarLoop]: Abstraction has 22472 states and 33740 transitions. [2021-11-20 23:48:24,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (161), 3 states have call predecessors, (161), 1 states have return successors, (159), 2 states have call predecessors, (159), 2 states have call successors, (159) [2021-11-20 23:48:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 22472 states and 33740 transitions. [2021-11-20 23:48:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1581 [2021-11-20 23:48:24,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:48:24,810 INFO L514 BasicCegarLoop]: trace histogram [154, 151, 151, 151, 151, 151, 151, 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] [2021-11-20 23:48:24,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:48:24,811 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:48:24,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:48:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1493491025, now seen corresponding path program 1 times [2021-11-20 23:48:24,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:48:24,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745528191] [2021-11-20 23:48:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:48:24,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:48:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:48:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 91518 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 91516 trivial. 0 not checked. [2021-11-20 23:48:27,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:48:27,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745528191] [2021-11-20 23:48:27,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745528191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:48:27,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:48:27,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:48:27,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952845645] [2021-11-20 23:48:27,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:48:27,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:48:27,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:48:27,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:48:27,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:48:27,825 INFO L87 Difference]: Start difference. First operand 22472 states and 33740 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (162), 3 states have call predecessors, (162), 1 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-20 23:48:29,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:31,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:33,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:39,547 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 [] [2021-11-20 23:48:44,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:48:44,892 INFO L93 Difference]: Finished difference Result 22478 states and 33745 transitions. [2021-11-20 23:48:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:48:44,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (162), 3 states have call predecessors, (162), 1 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) Word has length 1580 [2021-11-20 23:48:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:48:45,003 INFO L225 Difference]: With dead ends: 22478 [2021-11-20 23:48:45,004 INFO L226 Difference]: Without dead ends: 22476 [2021-11-20 23:48:45,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:48:45,014 INFO L933 BasicCegarLoop]: 7517 mSDtfsCounter, 6009 mSDsluCounter, 20526 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6012 SdHoareTripleChecker+Valid, 25369 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:48:45,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6012 Valid, 25369 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3782 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-20 23:48:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22476 states. [2021-11-20 23:48:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22476 to 22476. [2021-11-20 23:48:46,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22476 states, 14264 states have (on average 1.3459057767807068) internal successors, (19198), 14584 states have internal predecessors, (19198), 7236 states have call successors, (7236), 973 states have call predecessors, (7236), 973 states have return successors, (7309), 7190 states have call predecessors, (7309), 7232 states have call successors, (7309) [2021-11-20 23:48:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22476 states to 22476 states and 33743 transitions. [2021-11-20 23:48:46,908 INFO L78 Accepts]: Start accepts. Automaton has 22476 states and 33743 transitions. Word has length 1580 [2021-11-20 23:48:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:48:46,910 INFO L470 AbstractCegarLoop]: Abstraction has 22476 states and 33743 transitions. [2021-11-20 23:48:46,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (162), 3 states have call predecessors, (162), 1 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-20 23:48:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 22476 states and 33743 transitions. [2021-11-20 23:48:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2021-11-20 23:48:47,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:48:47,142 INFO L514 BasicCegarLoop]: trace histogram [154, 151, 151, 151, 151, 151, 151, 3, 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] [2021-11-20 23:48:47,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:48:47,143 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:48:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:48:47,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1730804768, now seen corresponding path program 1 times [2021-11-20 23:48:47,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:48:47,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421382517] [2021-11-20 23:48:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:48:47,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:48:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:48:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 91536 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91532 trivial. 0 not checked. [2021-11-20 23:48:49,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:48:49,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421382517] [2021-11-20 23:48:49,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421382517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:48:49,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:48:49,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:48:49,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198329859] [2021-11-20 23:48:49,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:48:49,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:48:49,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:48:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:48:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:48:49,991 INFO L87 Difference]: Start difference. First operand 22476 states and 33743 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (163), 3 states have call predecessors, (163), 1 states have return successors, (161), 2 states have call predecessors, (161), 2 states have call successors, (161) [2021-11-20 23:48:52,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:54,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:48:55,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:01,255 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 [] [2021-11-20 23:49:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:49:08,972 INFO L93 Difference]: Finished difference Result 44008 states and 66346 transitions. [2021-11-20 23:49:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:49:08,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (163), 3 states have call predecessors, (163), 1 states have return successors, (161), 2 states have call predecessors, (161), 2 states have call successors, (161) Word has length 1589 [2021-11-20 23:49:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:49:09,303 INFO L225 Difference]: With dead ends: 44008 [2021-11-20 23:49:09,303 INFO L226 Difference]: Without dead ends: 44004 [2021-11-20 23:49:09,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:49:09,323 INFO L933 BasicCegarLoop]: 9981 mSDtfsCounter, 7716 mSDsluCounter, 30486 mSDsCounter, 0 mSdLazyCounter, 5068 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7717 SdHoareTripleChecker+Valid, 36734 SdHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5068 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:49:09,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7717 Valid, 36734 Invalid, 5073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5068 Invalid, 2 Unknown, 0 Unchecked, 17.7s Time] [2021-11-20 23:49:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44004 states. [2021-11-20 23:49:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44004 to 43970. [2021-11-20 23:49:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43970 states, 27924 states have (on average 1.3474430597335625) internal successors, (37626), 28551 states have internal predecessors, (37626), 14118 states have call successors, (14118), 1925 states have call predecessors, (14118), 1925 states have return successors, (14560), 14028 states have call predecessors, (14560), 14110 states have call successors, (14560) [2021-11-20 23:49:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43970 states to 43970 states and 66304 transitions. [2021-11-20 23:49:12,892 INFO L78 Accepts]: Start accepts. Automaton has 43970 states and 66304 transitions. Word has length 1589 [2021-11-20 23:49:12,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:49:12,894 INFO L470 AbstractCegarLoop]: Abstraction has 43970 states and 66304 transitions. [2021-11-20 23:49:12,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (163), 3 states have call predecessors, (163), 1 states have return successors, (161), 2 states have call predecessors, (161), 2 states have call successors, (161) [2021-11-20 23:49:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 43970 states and 66304 transitions. [2021-11-20 23:49:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1591 [2021-11-20 23:49:12,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:12,950 INFO L514 BasicCegarLoop]: trace histogram [154, 151, 151, 151, 151, 151, 151, 4, 3, 3, 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] [2021-11-20 23:49:12,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:49:12,950 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:49:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1165522543, now seen corresponding path program 1 times [2021-11-20 23:49:12,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:49:12,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166875389] [2021-11-20 23:49:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:12,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:49:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 91534 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 91528 trivial. 0 not checked. [2021-11-20 23:49:15,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:49:15,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166875389] [2021-11-20 23:49:15,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166875389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:15,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:15,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:49:15,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690488820] [2021-11-20 23:49:15,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:15,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:49:15,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:49:15,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:49:15,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:49:15,743 INFO L87 Difference]: Start difference. First operand 43970 states and 66304 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (164), 3 states have call predecessors, (164), 1 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) [2021-11-20 23:49:17,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:18,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:20,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:26,538 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 [] [2021-11-20 23:49:31,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:49:31,998 INFO L93 Difference]: Finished difference Result 43976 states and 66309 transitions. [2021-11-20 23:49:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:49:31,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (164), 3 states have call predecessors, (164), 1 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) Word has length 1590 [2021-11-20 23:49:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:49:32,208 INFO L225 Difference]: With dead ends: 43976 [2021-11-20 23:49:32,209 INFO L226 Difference]: Without dead ends: 43906 [2021-11-20 23:49:32,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:49:32,234 INFO L933 BasicCegarLoop]: 7518 mSDtfsCounter, 6009 mSDsluCounter, 20528 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6010 SdHoareTripleChecker+Valid, 25372 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:49:32,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6010 Valid, 25372 Invalid, 3783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3780 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2021-11-20 23:49:32,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43906 states. [2021-11-20 23:49:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43906 to 43906. [2021-11-20 23:49:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43906 states, 27889 states have (on average 1.347305389221557) internal successors, (37575), 28508 states have internal predecessors, (37575), 14095 states have call successors, (14095), 1917 states have call predecessors, (14095), 1919 states have return successors, (14539), 14015 states have call predecessors, (14539), 14091 states have call successors, (14539) [2021-11-20 23:49:35,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43906 states to 43906 states and 66209 transitions. [2021-11-20 23:49:35,539 INFO L78 Accepts]: Start accepts. Automaton has 43906 states and 66209 transitions. Word has length 1590 [2021-11-20 23:49:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:49:35,547 INFO L470 AbstractCegarLoop]: Abstraction has 43906 states and 66209 transitions. [2021-11-20 23:49:35,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (164), 3 states have call predecessors, (164), 1 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) [2021-11-20 23:49:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 43906 states and 66209 transitions. [2021-11-20 23:49:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1704 [2021-11-20 23:49:35,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:35,704 INFO L514 BasicCegarLoop]: trace histogram [155, 151, 151, 151, 151, 151, 151, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:35,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:49:35,704 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:49:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1871509225, now seen corresponding path program 1 times [2021-11-20 23:49:35,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:49:35,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534179576] [2021-11-20 23:49:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:35,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:49:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 91850 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91850 trivial. 0 not checked. [2021-11-20 23:49:37,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:49:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534179576] [2021-11-20 23:49:37,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534179576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:37,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:37,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:49:37,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387541983] [2021-11-20 23:49:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:37,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:49:37,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:49:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:49:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:49:37,981 INFO L87 Difference]: Start difference. First operand 43906 states and 66209 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 3 states have call successors, (186), 2 states have call predecessors, (186), 1 states have return successors, (176), 3 states have call predecessors, (176), 3 states have call successors, (176) [2021-11-20 23:49:39,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:41,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:47,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:49:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:49:51,937 INFO L93 Difference]: Finished difference Result 106455 states and 160717 transitions. [2021-11-20 23:49:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:49:51,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 3 states have call successors, (186), 2 states have call predecessors, (186), 1 states have return successors, (176), 3 states have call predecessors, (176), 3 states have call successors, (176) Word has length 1703 [2021-11-20 23:49:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:49:52,320 INFO L225 Difference]: With dead ends: 106455 [2021-11-20 23:49:52,320 INFO L226 Difference]: Without dead ends: 62850 [2021-11-20 23:49:52,646 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 [2021-11-20 23:49:52,648 INFO L933 BasicCegarLoop]: 8534 mSDtfsCounter, 5752 mSDsluCounter, 8304 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 15751 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:49:52,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 15751 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2214 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2021-11-20 23:49:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62850 states. [2021-11-20 23:49:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62850 to 62820. [2021-11-20 23:49:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62820 states, 39851 states have (on average 1.349150585932599) internal successors, (53765), 40671 states have internal predecessors, (53765), 20346 states have call successors, (20346), 2619 states have call predecessors, (20346), 2620 states have return successors, (20784), 20240 states have call predecessors, (20784), 20342 states have call successors, (20784) [2021-11-20 23:49:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62820 states to 62820 states and 94895 transitions. [2021-11-20 23:49:56,995 INFO L78 Accepts]: Start accepts. Automaton has 62820 states and 94895 transitions. Word has length 1703 [2021-11-20 23:49:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:49:56,996 INFO L470 AbstractCegarLoop]: Abstraction has 62820 states and 94895 transitions. [2021-11-20 23:49:56,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 3 states have call successors, (186), 2 states have call predecessors, (186), 1 states have return successors, (176), 3 states have call predecessors, (176), 3 states have call successors, (176) [2021-11-20 23:49:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 62820 states and 94895 transitions. [2021-11-20 23:49:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2021-11-20 23:49:57,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:57,157 INFO L514 BasicCegarLoop]: trace histogram [160, 152, 152, 152, 152, 152, 152, 6, 6, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:57,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:49:57,158 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:49:57,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1570860400, now seen corresponding path program 1 times [2021-11-20 23:49:57,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:49:57,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258685524] [2021-11-20 23:49:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:57,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:49:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 94378 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94356 trivial. 0 not checked. [2021-11-20 23:49:59,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:49:59,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258685524] [2021-11-20 23:49:59,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258685524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:59,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:59,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:49:59,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096306496] [2021-11-20 23:49:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:59,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:49:59,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:49:59,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:49:59,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:49:59,183 INFO L87 Difference]: Start difference. First operand 62820 states and 94895 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 3 states have call successors, (189), 2 states have call predecessors, (189), 1 states have return successors, (187), 3 states have call predecessors, (187), 3 states have call successors, (187) [2021-11-20 23:50:01,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:50:03,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []