./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7 --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 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:08:53,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:08:53,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:08:53,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:08:53,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:08:53,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:08:53,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:08:53,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:08:53,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:08:53,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:08:53,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:08:53,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:08:53,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:08:53,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:08:53,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:08:53,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:08:53,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:08:53,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:08:53,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:08:53,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:08:53,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:08:53,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:08:53,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:08:53,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:08:53,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:08:53,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:08:53,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:08:53,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:08:53,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:08:53,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:08:53,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:08:53,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:08:53,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:08:53,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:08:53,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:08:53,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:08:53,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:08:53,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:08:53,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:08:53,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:08:53,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:08:53,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:08:53,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:08:53,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:08:53,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:08:53,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:08:53,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:08:53,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:08:53,781 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:08:53,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:08:53,781 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:08:53,781 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:08:53,782 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:08:53,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:08:53,784 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:08:53,784 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:08:53,784 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:08:53,785 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:08:53,785 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:08:53,785 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:08:53,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:08:53,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:08:53,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:08:53,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:08:53,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:08:53,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:08:53,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:08:53,788 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:08:53,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:08:53,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:08:53,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:08:53,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:08:53,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:08:53,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:08:53,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:08:53,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:08:53,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:08:53,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:08:53,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:08:53,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:08:53,792 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93890a4149f8ccc72c347448d790772c96dc9af5fdcf5ec8f5816140f9ba24c6 [2021-11-25 18:08:54,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:08:54,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:08:54,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:08:54,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:08:54,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:08:54,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-25 18:08:54,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/data/7f6a8ff92/5807710c2f2047838f647c98a2498f76/FLAG3e04ec4e2 [2021-11-25 18:08:55,516 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:08:55,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-25 18:08:55,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/data/7f6a8ff92/5807710c2f2047838f647c98a2498f76/FLAG3e04ec4e2 [2021-11-25 18:08:56,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/data/7f6a8ff92/5807710c2f2047838f647c98a2498f76 [2021-11-25 18:08:56,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:08:56,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:08:56,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:08:56,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:08:56,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:08:56,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:08:56" (1/1) ... [2021-11-25 18:08:56,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e71dbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:56, skipping insertion in model container [2021-11-25 18:08:56,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:08:56" (1/1) ... [2021-11-25 18:08:56,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:08:56,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:09:06,361 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:06,369 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:06,371 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:06,372 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:06,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:06,534 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:09:07,616 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:07,617 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:07,618 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:07,618 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_6653c804-c29e-4aff-94ec-b3ac0a9098f7/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] [2021-11-25 18:09:07,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:08,221 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:09:08,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08 WrapperNode [2021-11-25 18:09:08,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:09:08,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:08,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:09:08,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:09:08,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:08,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:09,439 INFO L137 Inliner]: procedures = 796, calls = 11384, calls flagged for inlining = 492, calls inlined = 456, statements flattened = 24363 [2021-11-25 18:09:09,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:09,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:09:09,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:09:09,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:09:09,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:09,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:09,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:09,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:09,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:10,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:10,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:10,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:09:10,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:09:10,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:09:10,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:09:10,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (1/1) ... [2021-11-25 18:09:10,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:09:10,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:10,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:09:10,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6653c804-c29e-4aff-94ec-b3ac0a9098f7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:09:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2021-11-25 18:09:10,674 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2021-11-25 18:09:10,674 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2021-11-25 18:09:10,674 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2021-11-25 18:09:10,674 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-25 18:09:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-25 18:09:10,675 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-25 18:09:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2021-11-25 18:09:10,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2021-11-25 18:09:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:09:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:09:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2021-11-25 18:09:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2021-11-25 18:09:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2021-11-25 18:09:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2021-11-25 18:09:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-25 18:09:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-25 18:09:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-25 18:09:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-25 18:09:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_lbs_private [2021-11-25 18:09:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_lbs_private [2021-11-25 18:09:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2021-11-25 18:09:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2021-11-25 18:09:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2021-11-25 18:09:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2021-11-25 18:09:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:09:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:09:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:09:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-25 18:09:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-25 18:09:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:09:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:09:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2021-11-25 18:09:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2021-11-25 18:09:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2021-11-25 18:09:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2021-11-25 18:09:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2021-11-25 18:09:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2021-11-25 18:09:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-25 18:09:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-25 18:09:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 18:09:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 18:09:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_reg [2021-11-25 18:09:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_reg [2021-11-25 18:09:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2021-11-25 18:09:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2021-11-25 18:09:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2021-11-25 18:09:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2021-11-25 18:09:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2021-11-25 18:09:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2021-11-25 18:09:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_16_5 [2021-11-25 18:09:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_16_5 [2021-11-25 18:09:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2021-11-25 18:09:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2021-11-25 18:09:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2021-11-25 18:09:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2021-11-25 18:09:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2021-11-25 18:09:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2021-11-25 18:09:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2021-11-25 18:09:10,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2021-11-25 18:09:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2021-11-25 18:09:10,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2021-11-25 18:09:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-25 18:09:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-25 18:09:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2021-11-25 18:09:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2021-11-25 18:09:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:09:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:09:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:09:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2021-11-25 18:09:10,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2021-11-25 18:09:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:09:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:09:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2021-11-25 18:09:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2021-11-25 18:09:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-25 18:09:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-25 18:09:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2021-11-25 18:09:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2021-11-25 18:09:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-25 18:09:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-25 18:09:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:09:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:09:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:09:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:09:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:09:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-25 18:09:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-25 18:09:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 18:09:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 18:09:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 18:09:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 18:09:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:09:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2021-11-25 18:09:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2021-11-25 18:09:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:09:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:09:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:09:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:09:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:09:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2021-11-25 18:09:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2021-11-25 18:09:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:09:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-25 18:09:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-25 18:09:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 18:09:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 18:09:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:09:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:09:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2021-11-25 18:09:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2021-11-25 18:09:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2021-11-25 18:09:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2021-11-25 18:09:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:09:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:09:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:09:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:09:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2021-11-25 18:09:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2021-11-25 18:09:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-25 18:09:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-25 18:09:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:09:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:09:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2021-11-25 18:09:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2021-11-25 18:09:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:09:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:09:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:09:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2021-11-25 18:09:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2021-11-25 18:09:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 18:09:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 18:09:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:09:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:09:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-25 18:09:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-25 18:09:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_dummy [2021-11-25 18:09:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_dummy [2021-11-25 18:09:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2021-11-25 18:09:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2021-11-25 18:09:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:09:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:09:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2021-11-25 18:09:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2021-11-25 18:09:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-25 18:09:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-25 18:09:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 18:09:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 18:09:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:09:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:09:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:09:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_read [2021-11-25 18:09:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_read [2021-11-25 18:09:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:09:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:09:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:09:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 18:09:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 18:09:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 18:09:10,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 18:09:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:09:10,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:09:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2021-11-25 18:09:10,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2021-11-25 18:09:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 18:09:10,736 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 18:09:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2021-11-25 18:09:10,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2021-11-25 18:09:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2021-11-25 18:09:10,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2021-11-25 18:09:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-25 18:09:10,737 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-25 18:09:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2021-11-25 18:09:10,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2021-11-25 18:09:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:09:10,738 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:09:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:09:10,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:09:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-25 18:09:10,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2021-11-25 18:09:10,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:09:10,756 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 18:09:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 18:09:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:09:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:09:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2021-11-25 18:09:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2021-11-25 18:09:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2021-11-25 18:09:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2021-11-25 18:09:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2021-11-25 18:09:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2021-11-25 18:09:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 18:09:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 18:09:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-25 18:09:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-25 18:09:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2021-11-25 18:09:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2021-11-25 18:09:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2021-11-25 18:09:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2021-11-25 18:09:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 18:09:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_lbs_private [2021-11-25 18:09:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_lbs_private [2021-11-25 18:09:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-25 18:09:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-25 18:09:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:09:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:09:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2021-11-25 18:09:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2021-11-25 18:09:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 18:09:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 18:09:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:09:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:09:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 18:09:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 18:09:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-25 18:09:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-25 18:09:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2021-11-25 18:09:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2021-11-25 18:09:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:09:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:09:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-25 18:09:10,762 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-25 18:09:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_reg [2021-11-25 18:09:10,762 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_reg [2021-11-25 18:09:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:09:10,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:09:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:09:10,762 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:09:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:09:10,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:09:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 18:09:10,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 18:09:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-25 18:09:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2021-11-25 18:09:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2021-11-25 18:09:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 18:09:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 18:09:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:09:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-25 18:09:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-25 18:09:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_sleepparams_read [2021-11-25 18:09:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_sleepparams_read [2021-11-25 18:09:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:09:10,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:09:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2021-11-25 18:09:10,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2021-11-25 18:09:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-25 18:09:10,772 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-25 18:09:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:09:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:09:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:09:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 18:09:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 18:09:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2021-11-25 18:09:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2021-11-25 18:09:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:09:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2021-11-25 18:09:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2021-11-25 18:09:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-25 18:09:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-25 18:09:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:09:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:09:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-25 18:09:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-25 18:09:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 18:09:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 18:09:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-25 18:09:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-25 18:09:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2021-11-25 18:09:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2021-11-25 18:09:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2021-11-25 18:09:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2021-11-25 18:09:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2021-11-25 18:09:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2021-11-25 18:09:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:09:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:09:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:09:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:09:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2021-11-25 18:09:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2021-11-25 18:09:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 18:09:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 18:09:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2021-11-25 18:09:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2021-11-25 18:09:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 18:09:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 18:09:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-25 18:09:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-25 18:09:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2021-11-25 18:09:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2021-11-25 18:09:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2021-11-25 18:09:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2021-11-25 18:09:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:09:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:09:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:09:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 18:09:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 18:09:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2021-11-25 18:09:10,779 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2021-11-25 18:09:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2021-11-25 18:09:10,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2021-11-25 18:09:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-25 18:09:10,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-25 18:09:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_15 [2021-11-25 18:09:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_15 [2021-11-25 18:09:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2021-11-25 18:09:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2021-11-25 18:09:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2021-11-25 18:09:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2021-11-25 18:09:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:09:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:09:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 18:09:10,796 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 18:09:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2021-11-25 18:09:10,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2021-11-25 18:09:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2021-11-25 18:09:10,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2021-11-25 18:09:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2021-11-25 18:09:10,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2021-11-25 18:09:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:09:10,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:09:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_write [2021-11-25 18:09:10,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_write [2021-11-25 18:09:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2021-11-25 18:09:10,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2021-11-25 18:09:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:09:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 18:09:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 18:09:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2021-11-25 18:09:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2021-11-25 18:09:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_802_11_sleep_params [2021-11-25 18:09:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_802_11_sleep_params [2021-11-25 18:09:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2021-11-25 18:09:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2021-11-25 18:09:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2021-11-25 18:09:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2021-11-25 18:09:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-25 18:09:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-25 18:09:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:09:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:09:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-25 18:09:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-25 18:09:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2021-11-25 18:09:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2021-11-25 18:09:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2021-11-25 18:09:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2021-11-25 18:09:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:09:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:09:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:09:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:09:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-25 18:09:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-25 18:09:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2021-11-25 18:09:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2021-11-25 18:09:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2021-11-25 18:09:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2021-11-25 18:09:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:09:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:09:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-25 18:09:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-25 18:09:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2021-11-25 18:09:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2021-11-25 18:09:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2021-11-25 18:09:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2021-11-25 18:09:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2021-11-25 18:09:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2021-11-25 18:09:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:09:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:09:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 18:09:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 18:09:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2021-11-25 18:09:10,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2021-11-25 18:09:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_read [2021-11-25 18:09:10,804 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_read [2021-11-25 18:09:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:09:10,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:09:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 18:09:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 18:09:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2021-11-25 18:09:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2021-11-25 18:09:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2021-11-25 18:09:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2021-11-25 18:09:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 18:09:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 18:09:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-25 18:09:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-25 18:09:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2021-11-25 18:09:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2021-11-25 18:09:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-25 18:09:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-25 18:09:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2021-11-25 18:09:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2021-11-25 18:09:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:09:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:09:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:09:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 18:09:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 18:09:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-25 18:09:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-25 18:09:13,173 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:09:13,179 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:09:15,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:16:43,413 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:16:43,652 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:16:54,079 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:16:54,079 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-25 18:16:54,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:16:54 BoogieIcfgContainer [2021-11-25 18:16:54,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:16:54,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:16:54,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:16:54,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:16:54,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:08:56" (1/3) ... [2021-11-25 18:16:54,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:16:54, skipping insertion in model container [2021-11-25 18:16:54,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:08" (2/3) ... [2021-11-25 18:16:54,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:16:54, skipping insertion in model container [2021-11-25 18:16:54,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:16:54" (3/3) ... [2021-11-25 18:16:54,107 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2021-11-25 18:16:54,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:16:54,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 18:16:54,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:16:54,201 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 [2021-11-25 18:16:54,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 18:16:54,439 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) [2021-11-25 18:16:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2021-11-25 18:16:54,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:16:54,555 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] [2021-11-25 18:16:54,556 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)] === [2021-11-25 18:16:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:16:54,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1135763522, now seen corresponding path program 1 times [2021-11-25 18:16:54,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:16:54,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657604759] [2021-11-25 18:16:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:16:54,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:16:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:16:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2021-11-25 18:16:58,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:16:58,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657604759] [2021-11-25 18:16:58,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657604759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:16:58,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:16:58,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:16:58,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729563168] [2021-11-25 18:16:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:16:58,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:16:58,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:16:58,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:16:58,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:16:58,431 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) [2021-11-25 18:16:59,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:17:01,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:17:08,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:17:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:17:12,481 INFO L93 Difference]: Finished difference Result 14545 states and 22147 transitions. [2021-11-25 18:17:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:17:12,484 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 [2021-11-25 18:17:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:17:12,596 INFO L225 Difference]: With dead ends: 14545 [2021-11-25 18:17:12,596 INFO L226 Difference]: Without dead ends: 9310 [2021-11-25 18:17:12,629 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 [2021-11-25 18:17:12,633 INFO L933 BasicCegarLoop]: 8568 mSDtfsCounter, 5822 mSDsluCounter, 8291 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s 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, 13.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:17:12,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5823 Valid, 15779 Invalid, 2240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2227 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2021-11-25 18:17:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9310 states. [2021-11-25 18:17:13,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9310 to 9310. [2021-11-25 18:17:13,636 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) [2021-11-25 18:17:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9310 states to 9310 states and 14121 transitions. [2021-11-25 18:17:13,722 INFO L78 Accepts]: Start accepts. Automaton has 9310 states and 14121 transitions. Word has length 1521 [2021-11-25 18:17:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:17:13,728 INFO L470 AbstractCegarLoop]: Abstraction has 9310 states and 14121 transitions. [2021-11-25 18:17:13,729 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) [2021-11-25 18:17:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9310 states and 14121 transitions. [2021-11-25 18:17:13,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2021-11-25 18:17:13,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:17:13,891 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] [2021-11-25 18:17:13,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:17:13,891 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)] === [2021-11-25 18:17:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:17:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1407820492, now seen corresponding path program 1 times [2021-11-25 18:17:13,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:17:13,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728300092] [2021-11-25 18:17:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:17:13,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:17:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:17:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 90310 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 90306 trivial. 0 not checked. [2021-11-25 18:17:16,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:17:16,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728300092] [2021-11-25 18:17:16,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728300092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:17:16,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:17:16,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:17:16,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653456201] [2021-11-25 18:17:16,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:17:16,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:17:16,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:17:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:17:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:17:16,624 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) [2021-11-25 18:17:18,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:17:20,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:17:47,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:18:12,182 INFO L93 Difference]: Finished difference Result 28641 states and 43608 transitions. [2021-11-25 18:18:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:18:12,186 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 [2021-11-25 18:18:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:18:12,370 INFO L225 Difference]: With dead ends: 28641 [2021-11-25 18:18:12,370 INFO L226 Difference]: Without dead ends: 19632 [2021-11-25 18:18:12,433 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 [2021-11-25 18:18:12,435 INFO L933 BasicCegarLoop]: 17395 mSDtfsCounter, 16173 mSDsluCounter, 20637 mSDsCounter, 0 mSdLazyCounter, 13270 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16177 SdHoareTripleChecker+Valid, 34409 SdHoareTripleChecker+Invalid, 13287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:18:12,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16177 Valid, 34409 Invalid, 13287 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 13270 Invalid, 2 Unknown, 0 Unchecked, 54.0s Time] [2021-11-25 18:18:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19632 states. [2021-11-25 18:18:14,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19632 to 19600. [2021-11-25 18:18:14,643 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) [2021-11-25 18:18:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19600 states to 19600 states and 29795 transitions. [2021-11-25 18:18:14,751 INFO L78 Accepts]: Start accepts. Automaton has 19600 states and 29795 transitions. Word has length 1561 [2021-11-25 18:18:14,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:18:14,757 INFO L470 AbstractCegarLoop]: Abstraction has 19600 states and 29795 transitions. [2021-11-25 18:18:14,757 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) [2021-11-25 18:18:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 19600 states and 29795 transitions. [2021-11-25 18:18:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2021-11-25 18:18:14,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:18:14,816 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] [2021-11-25 18:18:14,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:18:14,817 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)] === [2021-11-25 18:18:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:18:14,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2023622479, now seen corresponding path program 1 times [2021-11-25 18:18:14,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:18:14,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56014640] [2021-11-25 18:18:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:18:14,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:18:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:18:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 91516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91516 trivial. 0 not checked. [2021-11-25 18:18:18,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:18:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56014640] [2021-11-25 18:18:18,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56014640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:18:18,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:18:18,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:18:18,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416868302] [2021-11-25 18:18:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:18:18,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:18:18,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:18:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:18:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:18:18,407 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) [2021-11-25 18:18:20,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:26,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:32,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:18:32,629 INFO L93 Difference]: Finished difference Result 22474 states and 33742 transitions. [2021-11-25 18:18:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:18:32,629 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 [2021-11-25 18:18:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:18:32,759 INFO L225 Difference]: With dead ends: 22474 [2021-11-25 18:18:32,760 INFO L226 Difference]: Without dead ends: 22472 [2021-11-25 18:18:32,774 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 [2021-11-25 18:18:32,776 INFO L933 BasicCegarLoop]: 7514 mSDtfsCounter, 6014 mSDsluCounter, 20524 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s 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, 13.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:18:32,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6018 Valid, 25366 Invalid, 3784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3781 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2021-11-25 18:18:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22472 states. [2021-11-25 18:18:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22472 to 22472. [2021-11-25 18:18:34,930 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) [2021-11-25 18:18:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22472 states to 22472 states and 33740 transitions. [2021-11-25 18:18:35,046 INFO L78 Accepts]: Start accepts. Automaton has 22472 states and 33740 transitions. Word has length 1575 [2021-11-25 18:18:35,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:18:35,048 INFO L470 AbstractCegarLoop]: Abstraction has 22472 states and 33740 transitions. [2021-11-25 18:18:35,049 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) [2021-11-25 18:18:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 22472 states and 33740 transitions. [2021-11-25 18:18:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1581 [2021-11-25 18:18:35,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:18:35,108 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] [2021-11-25 18:18:35,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:18:35,108 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)] === [2021-11-25 18:18:35,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:18:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1493491025, now seen corresponding path program 1 times [2021-11-25 18:18:35,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:18:35,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159449946] [2021-11-25 18:18:35,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:18:35,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:18:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:18:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 91518 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 91516 trivial. 0 not checked. [2021-11-25 18:18:38,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:18:38,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159449946] [2021-11-25 18:18:38,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159449946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:18:38,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:18:38,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:18:38,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610432316] [2021-11-25 18:18:38,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:18:38,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:18:38,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:18:38,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:18:38,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:18:38,733 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) [2021-11-25 18:18:41,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:46,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:49,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:18:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:18:53,424 INFO L93 Difference]: Finished difference Result 22478 states and 33745 transitions. [2021-11-25 18:18:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:18:53,425 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 [2021-11-25 18:18:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:18:53,544 INFO L225 Difference]: With dead ends: 22478 [2021-11-25 18:18:53,544 INFO L226 Difference]: Without dead ends: 22476 [2021-11-25 18:18:53,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:18:53,560 INFO L933 BasicCegarLoop]: 7517 mSDtfsCounter, 6009 mSDsluCounter, 20524 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6012 SdHoareTripleChecker+Valid, 25369 SdHoareTripleChecker+Invalid, 3784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:18:53,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6012 Valid, 25369 Invalid, 3784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3781 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2021-11-25 18:18:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22476 states. [2021-11-25 18:18:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22476 to 22476. [2021-11-25 18:18:55,454 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) [2021-11-25 18:18:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22476 states to 22476 states and 33743 transitions. [2021-11-25 18:18:55,566 INFO L78 Accepts]: Start accepts. Automaton has 22476 states and 33743 transitions. Word has length 1580 [2021-11-25 18:18:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:18:55,568 INFO L470 AbstractCegarLoop]: Abstraction has 22476 states and 33743 transitions. [2021-11-25 18:18:55,569 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) [2021-11-25 18:18:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 22476 states and 33743 transitions. [2021-11-25 18:18:55,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2021-11-25 18:18:55,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:18:55,629 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] [2021-11-25 18:18:55,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:18:55,630 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)] === [2021-11-25 18:18:55,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:18:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1730804768, now seen corresponding path program 1 times [2021-11-25 18:18:55,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:18:55,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53515154] [2021-11-25 18:18:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:18:55,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:18:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:18:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 91536 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91532 trivial. 0 not checked. [2021-11-25 18:18:59,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:18:59,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53515154] [2021-11-25 18:18:59,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53515154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:18:59,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:18:59,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:18:59,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567868084] [2021-11-25 18:18:59,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:18:59,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:18:59,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:18:59,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:18:59,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:18:59,086 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) [2021-11-25 18:19:01,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:07,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:10,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:19:17,812 INFO L93 Difference]: Finished difference Result 44008 states and 66346 transitions. [2021-11-25 18:19:17,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:19:17,813 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 [2021-11-25 18:19:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:19:18,085 INFO L225 Difference]: With dead ends: 44008 [2021-11-25 18:19:18,087 INFO L226 Difference]: Without dead ends: 44004 [2021-11-25 18:19:18,112 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 [2021-11-25 18:19:18,115 INFO L933 BasicCegarLoop]: 9981 mSDtfsCounter, 7716 mSDsluCounter, 30484 mSDsCounter, 0 mSdLazyCounter, 5066 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7717 SdHoareTripleChecker+Valid, 36734 SdHoareTripleChecker+Invalid, 5071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5066 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:19:18,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7717 Valid, 36734 Invalid, 5071 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5066 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2021-11-25 18:19:18,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44004 states. [2021-11-25 18:19:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44004 to 43970. [2021-11-25 18:19:22,049 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) [2021-11-25 18:19:22,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43970 states to 43970 states and 66304 transitions. [2021-11-25 18:19:22,469 INFO L78 Accepts]: Start accepts. Automaton has 43970 states and 66304 transitions. Word has length 1589 [2021-11-25 18:19:22,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:19:22,471 INFO L470 AbstractCegarLoop]: Abstraction has 43970 states and 66304 transitions. [2021-11-25 18:19:22,472 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) [2021-11-25 18:19:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 43970 states and 66304 transitions. [2021-11-25 18:19:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1591 [2021-11-25 18:19:22,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:19:22,529 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] [2021-11-25 18:19:22,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:19:22,529 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)] === [2021-11-25 18:19:22,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:19:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1165522543, now seen corresponding path program 1 times [2021-11-25 18:19:22,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:19:22,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599346250] [2021-11-25 18:19:22,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:19:22,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:19:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:19:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 91534 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 91528 trivial. 0 not checked. [2021-11-25 18:19:25,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:19:25,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599346250] [2021-11-25 18:19:25,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599346250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:19:25,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:19:25,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:19:25,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898938449] [2021-11-25 18:19:25,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:19:25,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:19:25,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:19:25,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:19:25,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:19:25,399 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) [2021-11-25 18:19:27,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:33,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:19:40,865 INFO L93 Difference]: Finished difference Result 43976 states and 66309 transitions. [2021-11-25 18:19:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:19:40,871 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 [2021-11-25 18:19:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:19:41,071 INFO L225 Difference]: With dead ends: 43976 [2021-11-25 18:19:41,071 INFO L226 Difference]: Without dead ends: 43906 [2021-11-25 18:19:41,097 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 [2021-11-25 18:19:41,103 INFO L933 BasicCegarLoop]: 7518 mSDtfsCounter, 6009 mSDsluCounter, 20526 mSDsCounter, 0 mSdLazyCounter, 3778 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6010 SdHoareTripleChecker+Valid, 25372 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3778 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:19:41,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6010 Valid, 25372 Invalid, 3781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3778 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2021-11-25 18:19:41,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43906 states. [2021-11-25 18:19:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43906 to 43906. [2021-11-25 18:19:44,037 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) [2021-11-25 18:19:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43906 states to 43906 states and 66209 transitions. [2021-11-25 18:19:44,481 INFO L78 Accepts]: Start accepts. Automaton has 43906 states and 66209 transitions. Word has length 1590 [2021-11-25 18:19:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:19:44,484 INFO L470 AbstractCegarLoop]: Abstraction has 43906 states and 66209 transitions. [2021-11-25 18:19:44,484 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) [2021-11-25 18:19:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 43906 states and 66209 transitions. [2021-11-25 18:19:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1704 [2021-11-25 18:19:44,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:19:44,599 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] [2021-11-25 18:19:44,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:19:44,600 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)] === [2021-11-25 18:19:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:19:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1871509225, now seen corresponding path program 1 times [2021-11-25 18:19:44,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:19:44,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433101309] [2021-11-25 18:19:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:19:44,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:19:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:19:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 91850 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91850 trivial. 0 not checked. [2021-11-25 18:19:47,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:19:47,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433101309] [2021-11-25 18:19:47,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433101309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:19:47,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:19:47,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:19:47,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688662395] [2021-11-25 18:19:47,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:19:47,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:19:47,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:19:47,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:19:47,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:19:47,112 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) [2021-11-25 18:19:49,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:55,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:19:59,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:19:59,682 INFO L93 Difference]: Finished difference Result 106455 states and 160717 transitions. [2021-11-25 18:19:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:19:59,684 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 [2021-11-25 18:19:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:19:59,908 INFO L225 Difference]: With dead ends: 106455 [2021-11-25 18:19:59,908 INFO L226 Difference]: Without dead ends: 62850 [2021-11-25 18:20:00,064 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 [2021-11-25 18:20:00,065 INFO L933 BasicCegarLoop]: 8534 mSDtfsCounter, 5752 mSDsluCounter, 8304 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 15751 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:00,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 15751 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2213 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2021-11-25 18:20:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62850 states. [2021-11-25 18:20:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62850 to 62820. [2021-11-25 18:20:04,036 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) [2021-11-25 18:20:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62820 states to 62820 states and 94895 transitions. [2021-11-25 18:20:04,505 INFO L78 Accepts]: Start accepts. Automaton has 62820 states and 94895 transitions. Word has length 1703 [2021-11-25 18:20:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:04,507 INFO L470 AbstractCegarLoop]: Abstraction has 62820 states and 94895 transitions. [2021-11-25 18:20:04,507 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) [2021-11-25 18:20:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 62820 states and 94895 transitions. [2021-11-25 18:20:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1756 [2021-11-25 18:20:04,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:04,616 INFO L514 BasicCegarLoop]: trace histogram [160, 152, 152, 152, 152, 152, 152, 6, 6, 4, 4, 4, 3, 3, 3, 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] [2021-11-25 18:20:04,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:20:04,616 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)] === [2021-11-25 18:20:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1176205481, now seen corresponding path program 1 times [2021-11-25 18:20:04,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:04,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575077184] [2021-11-25 18:20:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:04,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 94380 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 94356 trivial. 0 not checked. [2021-11-25 18:20:06,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575077184] [2021-11-25 18:20:06,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575077184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:06,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:06,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:06,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212722788] [2021-11-25 18:20:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:06,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:06,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:06,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:06,723 INFO L87 Difference]: Start difference. First operand 62820 states and 94895 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2021-11-25 18:20:09,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:20:16,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:20:20,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:20,547 INFO L93 Difference]: Finished difference Result 144405 states and 218280 transitions. [2021-11-25 18:20:20,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:20,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) Word has length 1755 [2021-11-25 18:20:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:20,866 INFO L225 Difference]: With dead ends: 144405 [2021-11-25 18:20:20,866 INFO L226 Difference]: Without dead ends: 85606 [2021-11-25 18:20:21,019 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 [2021-11-25 18:20:21,020 INFO L933 BasicCegarLoop]: 12199 mSDtfsCounter, 5752 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 19414 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:21,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 19414 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3017 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-11-25 18:20:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85606 states. [2021-11-25 18:20:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85606 to 85576. [2021-11-25 18:20:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85576 states, 54242 states have (on average 1.3504111205339036) internal successors, (73249), 55304 states have internal predecessors, (73249), 27877 states have call successors, (27877), 3454 states have call predecessors, (27877), 3454 states have return successors, (28317), 27744 states have call predecessors, (28317), 27873 states have call successors, (28317) [2021-11-25 18:20:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85576 states to 85576 states and 129443 transitions. [2021-11-25 18:20:27,084 INFO L78 Accepts]: Start accepts. Automaton has 85576 states and 129443 transitions. Word has length 1755 [2021-11-25 18:20:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:27,086 INFO L470 AbstractCegarLoop]: Abstraction has 85576 states and 129443 transitions. [2021-11-25 18:20:27,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2021-11-25 18:20:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 85576 states and 129443 transitions. [2021-11-25 18:20:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1794 [2021-11-25 18:20:27,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:27,240 INFO L514 BasicCegarLoop]: trace histogram [162, 152, 152, 152, 152, 152, 152, 6, 6, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:27,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:20:27,240 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:20:27,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash -315766109, now seen corresponding path program 1 times [2021-11-25 18:20:27,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:27,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116183718] [2021-11-25 18:20:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:27,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 95063 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 95036 trivial. 0 not checked. [2021-11-25 18:20:29,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:29,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116183718] [2021-11-25 18:20:29,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116183718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:29,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:29,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:29,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35365095] [2021-11-25 18:20:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:29,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:29,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:29,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:29,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:29,653 INFO L87 Difference]: Start difference. First operand 85576 states and 129443 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2021-11-25 18:20:31,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:20:33,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []