./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI --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 4b4d1109d3d8d53e29825c3b476b87cdd6fec06f9f511afc6c3035bd20ad8bf5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:41:57,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:41:57,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:41:57,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:41:57,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:41:57,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:41:57,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:41:57,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:41:57,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:41:57,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:41:57,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:41:57,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:41:57,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:41:57,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:41:57,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:41:57,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:41:57,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:41:57,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:41:57,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:41:57,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:41:57,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:41:57,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:41:57,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:41:57,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:41:57,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:41:57,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:41:57,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:41:57,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:41:57,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:41:57,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:41:57,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:41:57,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:41:57,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:41:57,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:41:57,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:41:57,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:41:57,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:41:57,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:41:57,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:41:57,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:41:57,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:41:57,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:41:57,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:41:57,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:41:57,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:41:57,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:41:57,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:41:57,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:41:57,572 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:41:57,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:41:57,573 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:41:57,573 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:41:57,573 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:41:57,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:41:57,574 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:41:57,574 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:41:57,575 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:41:57,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:41:57,575 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:41:57,576 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:41:57,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:41:57,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:41:57,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:41:57,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:41:57,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:41:57,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:41:57,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:41:57,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:41:57,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:41:57,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:41:57,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:41:57,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:41:57,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:41:57,580 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:41:57,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:41:57,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:41:57,581 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:41:57,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:41:57,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:41:57,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:41:57,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b4d1109d3d8d53e29825c3b476b87cdd6fec06f9f511afc6c3035bd20ad8bf5 [2022-11-03 01:41:57,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:41:57,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:41:57,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:41:57,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:41:57,907 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:41:57,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-03 01:41:58,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/data/11661fc18/436c098c07774768bf20c4aad3730687/FLAG39be63be2 [2022-11-03 01:41:59,145 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:41:59,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-03 01:41:59,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/data/11661fc18/436c098c07774768bf20c4aad3730687/FLAG39be63be2 [2022-11-03 01:41:59,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/data/11661fc18/436c098c07774768bf20c4aad3730687 [2022-11-03 01:41:59,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:41:59,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:41:59,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:41:59,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:41:59,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:41:59,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:59" (1/1) ... [2022-11-03 01:41:59,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1fdda8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:59, skipping insertion in model container [2022-11-03 01:41:59,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:59" (1/1) ... [2022-11-03 01:41:59,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:41:59,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:42:07,486 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[800980,800993] [2022-11-03 01:42:07,489 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801146,801159] [2022-11-03 01:42:07,489 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801310,801323] [2022-11-03 01:42:07,490 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801475,801488] [2022-11-03 01:42:07,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:07,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:42:08,526 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[800980,800993] [2022-11-03 01:42:08,527 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801146,801159] [2022-11-03 01:42:08,527 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801310,801323] [2022-11-03 01:42:08,528 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_73373443-4c0d-4bed-9361-3451349d5431/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801475,801488] [2022-11-03 01:42:08,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:09,101 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:42:09,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09 WrapperNode [2022-11-03 01:42:09,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:09,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:09,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:42:09,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:42:09,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:09,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,052 INFO L138 Inliner]: procedures = 733, calls = 11128, calls flagged for inlining = 427, calls inlined = 391, statements flattened = 22091 [2022-11-03 01:42:10,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:10,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:42:10,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:42:10,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:42:10,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:10,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:11,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:42:11,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:42:11,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:42:11,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:42:11,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (1/1) ... [2022-11-03 01:42:11,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:11,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:42:11,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:42:11,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2022-11-03 01:42:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2022-11-03 01:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2022-11-03 01:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2022-11-03 01:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 01:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 01:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 01:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2022-11-03 01:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2022-11-03 01:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-03 01:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-03 01:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2022-11-03 01:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2022-11-03 01:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 01:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 01:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2022-11-03 01:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2022-11-03 01:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2022-11-03 01:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2022-11-03 01:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 01:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 01:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-03 01:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-03 01:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 01:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 01:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-03 01:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-03 01:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2022-11-03 01:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2022-11-03 01:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 01:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 01:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2022-11-03 01:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2022-11-03 01:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_20 [2022-11-03 01:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_20 [2022-11-03 01:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2022-11-03 01:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2022-11-03 01:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 01:42:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 01:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_reg [2022-11-03 01:42:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_reg [2022-11-03 01:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 01:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-03 01:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-03 01:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 01:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 01:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:42:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-03 01:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_16 [2022-11-03 01:42:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_16 [2022-11-03 01:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2022-11-03 01:42:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2022-11-03 01:42:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2022-11-03 01:42:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2022-11-03 01:42:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2022-11-03 01:42:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2022-11-03 01:42:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 01:42:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 01:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2022-11-03 01:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2022-11-03 01:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure auto_deepsleep_timer_fn [2022-11-03 01:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure auto_deepsleep_timer_fn [2022-11-03 01:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 01:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 01:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_sleepparams_read [2022-11-03 01:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_sleepparams_read [2022-11-03 01:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 01:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 01:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 01:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 01:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_reg [2022-11-03 01:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_reg [2022-11-03 01:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2022-11-03 01:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2022-11-03 01:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2022-11-03 01:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2022-11-03 01:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2022-11-03 01:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2022-11-03 01:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2022-11-03 01:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2022-11-03 01:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2022-11-03 01:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2022-11-03 01:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2022-11-03 01:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2022-11-03 01:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 01:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 01:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2022-11-03 01:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2022-11-03 01:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 01:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 01:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_28_2 [2022-11-03 01:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_28_2 [2022-11-03 01:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2022-11-03 01:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2022-11-03 01:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2022-11-03 01:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2022-11-03 01:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 01:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 01:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2022-11-03 01:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2022-11-03 01:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 01:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 01:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2022-11-03 01:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2022-11-03 01:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2022-11-03 01:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2022-11-03 01:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:42:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:42:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-03 01:42:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-03 01:42:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:42:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:42:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:42:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:42:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:42:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 01:42:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 01:42:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2022-11-03 01:42:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2022-11-03 01:42:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 01:42:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 01:42:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 01:42:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 01:42:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-03 01:42:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-03 01:42:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2022-11-03 01:42:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2022-11-03 01:42:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 01:42:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 01:42:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:42:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-03 01:42:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-03 01:42:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 01:42:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 01:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 01:42:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 01:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2022-11-03 01:42:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2022-11-03 01:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2022-11-03 01:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2022-11-03 01:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-03 01:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-03 01:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2022-11-03 01:42:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2022-11-03 01:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2022-11-03 01:42:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2022-11-03 01:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-03 01:42:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-03 01:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:42:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 01:42:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 01:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:42:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:42:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 01:42:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 01:42:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2022-11-03 01:42:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2022-11-03 01:42:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2022-11-03 01:42:11,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2022-11-03 01:42:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2022-11-03 01:42:11,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2022-11-03 01:42:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 01:42:11,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 01:42:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:42:11,434 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:42:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:42:11,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:42:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2022-11-03 01:42:11,435 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2022-11-03 01:42:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-03 01:42:11,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-03 01:42:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 01:42:11,436 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 01:42:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 01:42:11,436 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 01:42:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2022-11-03 01:42:11,436 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2022-11-03 01:42:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2022-11-03 01:42:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2022-11-03 01:42:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 01:42:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 01:42:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:42:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:42:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2022-11-03 01:42:11,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2022-11-03 01:42:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 01:42:11,438 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 01:42:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2022-11-03 01:42:11,438 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2022-11-03 01:42:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:42:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:42:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-03 01:42:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-03 01:42:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:42:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:42:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 01:42:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 01:42:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2022-11-03 01:42:11,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2022-11-03 01:42:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 01:42:11,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 01:42:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 01:42:11,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 01:42:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2022-11-03 01:42:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2022-11-03 01:42:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 01:42:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 01:42:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_dummy [2022-11-03 01:42:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_dummy [2022-11-03 01:42:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2022-11-03 01:42:11,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2022-11-03 01:42:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-03 01:42:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-03 01:42:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_15 [2022-11-03 01:42:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_15 [2022-11-03 01:42:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:42:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:42:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2022-11-03 01:42:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2022-11-03 01:42:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2022-11-03 01:42:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2022-11-03 01:42:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2022-11-03 01:42:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2022-11-03 01:42:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:42:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:42:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 01:42:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 01:42:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 01:42:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 01:42:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2022-11-03 01:42:11,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2022-11-03 01:42:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 01:42:11,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 01:42:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:42:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:42:11,445 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:42:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_read [2022-11-03 01:42:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_read [2022-11-03 01:42:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2022-11-03 01:42:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2022-11-03 01:42:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2022-11-03 01:42:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2022-11-03 01:42:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:42:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:42:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:42:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_write [2022-11-03 01:42:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_write [2022-11-03 01:42:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2022-11-03 01:42:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2022-11-03 01:42:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:42:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 01:42:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 01:42:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2022-11-03 01:42:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2022-11-03 01:42:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 01:42:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 01:42:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 01:42:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 01:42:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_802_11_sleep_params [2022-11-03 01:42:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_802_11_sleep_params [2022-11-03 01:42:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2022-11-03 01:42:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2022-11-03 01:42:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-03 01:42:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-03 01:42:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-03 01:42:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-03 01:42:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:42:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:42:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:42:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:42:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-03 01:42:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-03 01:42:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:42:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:42:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2022-11-03 01:42:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2022-11-03 01:42:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 01:42:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 01:42:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2022-11-03 01:42:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2022-11-03 01:42:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2022-11-03 01:42:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2022-11-03 01:42:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-03 01:42:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-03 01:42:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2022-11-03 01:42:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2022-11-03 01:42:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2022-11-03 01:42:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2022-11-03 01:42:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 01:42:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 01:42:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2022-11-03 01:42:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2022-11-03 01:42:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:42:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:42:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 01:42:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 01:42:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2022-11-03 01:42:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2022-11-03 01:42:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:42:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:42:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2022-11-03 01:42:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2022-11-03 01:42:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:42:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:42:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 01:42:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 01:42:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-11-03 01:42:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2022-11-03 01:42:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 01:42:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 01:42:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:42:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2022-11-03 01:42:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2022-11-03 01:42:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 01:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 01:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2022-11-03 01:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2022-11-03 01:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_33_2 [2022-11-03 01:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_33_2 [2022-11-03 01:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2022-11-03 01:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2022-11-03 01:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2022-11-03 01:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2022-11-03 01:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 01:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 01:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_28 [2022-11-03 01:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_28 [2022-11-03 01:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 01:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 01:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2022-11-03 01:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2022-11-03 01:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2022-11-03 01:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2022-11-03 01:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2022-11-03 01:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2022-11-03 01:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_read [2022-11-03 01:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_read [2022-11-03 01:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 01:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 01:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-03 01:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-03 01:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2022-11-03 01:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2022-11-03 01:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2022-11-03 01:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2022-11-03 01:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 01:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 01:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2022-11-03 01:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2022-11-03 01:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2022-11-03 01:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2022-11-03 01:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 01:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 01:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2022-11-03 01:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2022-11-03 01:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 01:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 01:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 01:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 01:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 01:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2022-11-03 01:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2022-11-03 01:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 01:42:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 01:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-03 01:42:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-03 01:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 01:42:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 01:42:13,883 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:42:13,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:42:16,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:49:51,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:49:58,895 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:49:58,896 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-03 01:49:58,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:49:58 BoogieIcfgContainer [2022-11-03 01:49:58,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:49:58,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:49:58,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:49:58,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:49:58,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:41:59" (1/3) ... [2022-11-03 01:49:58,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c31e40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:49:58, skipping insertion in model container [2022-11-03 01:49:58,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:09" (2/3) ... [2022-11-03 01:49:58,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c31e40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:49:58, skipping insertion in model container [2022-11-03 01:49:58,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:49:58" (3/3) ... [2022-11-03 01:49:58,916 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-03 01:49:58,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:49:58,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 01:49:59,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:49:59,077 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71805a74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:49:59,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 01:49:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 4809 states, 2959 states have (on average 1.3261236904359581) internal successors, (3924), 3145 states have internal predecessors, (3924), 1657 states have call successors, (1657), 192 states have call predecessors, (1657), 191 states have return successors, (1637), 1587 states have call predecessors, (1637), 1637 states have call successors, (1637) [2022-11-03 01:49:59,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 01:49:59,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:59,104 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:49:59,105 INFO L420 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)] === [2022-11-03 01:49:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:59,110 INFO L85 PathProgramCache]: Analyzing trace with hash 896950604, now seen corresponding path program 1 times [2022-11-03 01:49:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:59,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522935154] [2022-11-03 01:49:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:59,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:50:03,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:03,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522935154] [2022-11-03 01:50:03,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522935154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:03,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:03,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:03,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189446828] [2022-11-03 01:50:03,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:03,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:50:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:50:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:03,731 INFO L87 Difference]: Start difference. First operand has 4809 states, 2959 states have (on average 1.3261236904359581) internal successors, (3924), 3145 states have internal predecessors, (3924), 1657 states have call successors, (1657), 192 states have call predecessors, (1657), 191 states have return successors, (1637), 1587 states have call predecessors, (1637), 1637 states have call successors, (1637) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-03 01:50:06,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:11,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:14,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:14,027 INFO L93 Difference]: Finished difference Result 9621 states and 14476 transitions. [2022-11-03 01:50:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:14,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2022-11-03 01:50:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:14,092 INFO L225 Difference]: With dead ends: 9621 [2022-11-03 01:50:14,093 INFO L226 Difference]: Without dead ends: 4798 [2022-11-03 01:50:14,125 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:50:14,129 INFO L413 NwaCegarLoop]: 6328 mSDtfsCounter, 37 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12637 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:14,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 12637 Invalid, 1729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1727 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 01:50:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2022-11-03 01:50:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 4798. [2022-11-03 01:50:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4798 states, 2962 states have (on average 1.3166779203241052) internal successors, (3900), 3132 states have internal predecessors, (3900), 1636 states have call successors, (1636), 198 states have call predecessors, (1636), 197 states have return successors, (1633), 1583 states have call predecessors, (1633), 1633 states have call successors, (1633) [2022-11-03 01:50:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4798 states to 4798 states and 7169 transitions. [2022-11-03 01:50:14,709 INFO L78 Accepts]: Start accepts. Automaton has 4798 states and 7169 transitions. Word has length 34 [2022-11-03 01:50:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:14,709 INFO L495 AbstractCegarLoop]: Abstraction has 4798 states and 7169 transitions. [2022-11-03 01:50:14,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-03 01:50:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4798 states and 7169 transitions. [2022-11-03 01:50:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 01:50:14,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:14,712 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:50:14,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:50:14,713 INFO L420 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)] === [2022-11-03 01:50:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1557268980, now seen corresponding path program 1 times [2022-11-03 01:50:14,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:14,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797936297] [2022-11-03 01:50:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:14,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:50:19,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:19,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797936297] [2022-11-03 01:50:19,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797936297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:19,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:19,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:50:19,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797211659] [2022-11-03 01:50:19,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:19,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:50:19,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:19,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:50:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:50:19,666 INFO L87 Difference]: Start difference. First operand 4798 states and 7169 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 01:50:21,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:23,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:25,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:33,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:38,234 INFO L93 Difference]: Finished difference Result 5425 states and 7991 transitions. [2022-11-03 01:50:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:50:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-03 01:50:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:38,277 INFO L225 Difference]: With dead ends: 5425 [2022-11-03 01:50:38,277 INFO L226 Difference]: Without dead ends: 5423 [2022-11-03 01:50:38,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:50:38,284 INFO L413 NwaCegarLoop]: 6438 mSDtfsCounter, 4243 mSDsluCounter, 18309 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 22482 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:38,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 22482 Invalid, 3144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3140 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2022-11-03 01:50:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2022-11-03 01:50:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 5423. [2022-11-03 01:50:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 3350 states have (on average 1.3125373134328358) internal successors, (4397), 3530 states have internal predecessors, (4397), 1797 states have call successors, (1797), 274 states have call predecessors, (1797), 273 states have return successors, (1795), 1744 states have call predecessors, (1795), 1794 states have call successors, (1795) [2022-11-03 01:50:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 7989 transitions. [2022-11-03 01:50:38,840 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 7989 transitions. Word has length 48 [2022-11-03 01:50:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:38,841 INFO L495 AbstractCegarLoop]: Abstraction has 5423 states and 7989 transitions. [2022-11-03 01:50:38,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 01:50:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 7989 transitions. [2022-11-03 01:50:38,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-03 01:50:38,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:38,850 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:50:38,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:50:38,851 INFO L420 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)] === [2022-11-03 01:50:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2003736908, now seen corresponding path program 1 times [2022-11-03 01:50:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:38,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417811312] [2022-11-03 01:50:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:50:42,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:42,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417811312] [2022-11-03 01:50:42,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417811312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:42,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:50:42,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633429842] [2022-11-03 01:50:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:42,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:50:42,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:50:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:50:42,840 INFO L87 Difference]: Start difference. First operand 5423 states and 7989 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 01:50:45,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:56,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:56,670 INFO L93 Difference]: Finished difference Result 5429 states and 7994 transitions. [2022-11-03 01:50:56,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:50:56,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 53 [2022-11-03 01:50:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:56,704 INFO L225 Difference]: With dead ends: 5429 [2022-11-03 01:50:56,705 INFO L226 Difference]: Without dead ends: 5427 [2022-11-03 01:50:56,709 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:50:56,710 INFO L413 NwaCegarLoop]: 6441 mSDtfsCounter, 4238 mSDsluCounter, 18307 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4241 SdHoareTripleChecker+Valid, 22485 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:56,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4241 Valid, 22485 Invalid, 3142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3139 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2022-11-03 01:50:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2022-11-03 01:50:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 5427. [2022-11-03 01:50:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 3353 states have (on average 1.31225767968983) internal successors, (4400), 3533 states have internal predecessors, (4400), 1797 states have call successors, (1797), 275 states have call predecessors, (1797), 274 states have return successors, (1795), 1744 states have call predecessors, (1795), 1794 states have call successors, (1795) [2022-11-03 01:50:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 7992 transitions. [2022-11-03 01:50:57,102 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 7992 transitions. Word has length 53 [2022-11-03 01:50:57,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:57,103 INFO L495 AbstractCegarLoop]: Abstraction has 5427 states and 7992 transitions. [2022-11-03 01:50:57,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 01:50:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 7992 transitions. [2022-11-03 01:50:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-03 01:50:57,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:57,107 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 01:50:57,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:50:57,108 INFO L420 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)] === [2022-11-03 01:50:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:57,146 INFO L85 PathProgramCache]: Analyzing trace with hash -962644276, now seen corresponding path program 1 times [2022-11-03 01:50:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:57,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532002695] [2022-11-03 01:50:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:57,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 01:51:00,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:00,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532002695] [2022-11-03 01:51:00,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532002695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:00,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:00,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:00,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846199422] [2022-11-03 01:51:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:00,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:00,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:00,820 INFO L87 Difference]: Start difference. First operand 5427 states and 7992 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 01:51:03,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:05,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:07,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:14,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:20,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:20,985 INFO L93 Difference]: Finished difference Result 8281 states and 12139 transitions. [2022-11-03 01:51:20,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:51:20,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2022-11-03 01:51:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:21,042 INFO L225 Difference]: With dead ends: 8281 [2022-11-03 01:51:21,042 INFO L226 Difference]: Without dead ends: 8277 [2022-11-03 01:51:21,049 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:51:21,050 INFO L413 NwaCegarLoop]: 8481 mSDtfsCounter, 6843 mSDsluCounter, 23252 mSDsCounter, 0 mSdLazyCounter, 4059 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6844 SdHoareTripleChecker+Valid, 28850 SdHoareTripleChecker+Invalid, 4065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4059 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:21,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6844 Valid, 28850 Invalid, 4065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4059 Invalid, 3 Unknown, 0 Unchecked, 19.7s Time] [2022-11-03 01:51:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-11-03 01:51:21,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8263. [2022-11-03 01:51:21,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8263 states, 5149 states have (on average 1.315983686152651) internal successors, (6776), 5405 states have internal predecessors, (6776), 2642 states have call successors, (2642), 471 states have call predecessors, (2642), 469 states have return successors, (2703), 2574 states have call predecessors, (2703), 2637 states have call successors, (2703) [2022-11-03 01:51:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8263 states to 8263 states and 12121 transitions. [2022-11-03 01:51:21,715 INFO L78 Accepts]: Start accepts. Automaton has 8263 states and 12121 transitions. Word has length 58 [2022-11-03 01:51:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:21,716 INFO L495 AbstractCegarLoop]: Abstraction has 8263 states and 12121 transitions. [2022-11-03 01:51:21,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 01:51:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8263 states and 12121 transitions. [2022-11-03 01:51:21,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:51:21,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:21,720 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-11-03 01:51:21,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:51:21,721 INFO L420 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)] === [2022-11-03 01:51:21,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1640287604, now seen corresponding path program 1 times [2022-11-03 01:51:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421073940] [2022-11-03 01:51:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 01:51:25,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:25,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421073940] [2022-11-03 01:51:25,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421073940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:25,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:25,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781603742] [2022-11-03 01:51:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:25,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:25,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:25,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:25,130 INFO L87 Difference]: Start difference. First operand 8263 states and 12121 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 01:51:27,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:33,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:35,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:37,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:40,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:40,952 INFO L93 Difference]: Finished difference Result 8269 states and 12126 transitions. [2022-11-03 01:51:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:51:40,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 63 [2022-11-03 01:51:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:41,014 INFO L225 Difference]: With dead ends: 8269 [2022-11-03 01:51:41,015 INFO L226 Difference]: Without dead ends: 8116 [2022-11-03 01:51:41,019 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:51:41,023 INFO L413 NwaCegarLoop]: 6280 mSDtfsCounter, 7126 mSDsluCounter, 14273 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7126 SdHoareTripleChecker+Valid, 18829 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:41,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7126 Valid, 18829 Invalid, 2596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2592 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-11-03 01:51:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8116 states. [2022-11-03 01:51:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8116 to 8116. [2022-11-03 01:51:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8116 states, 5067 states have (on average 1.316952832050523) internal successors, (6673), 5312 states have internal predecessors, (6673), 2582 states have call successors, (2582), 465 states have call predecessors, (2582), 464 states have return successors, (2646), 2517 states have call predecessors, (2646), 2580 states have call successors, (2646) [2022-11-03 01:51:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8116 states to 8116 states and 11901 transitions. [2022-11-03 01:51:41,600 INFO L78 Accepts]: Start accepts. Automaton has 8116 states and 11901 transitions. Word has length 63 [2022-11-03 01:51:41,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:41,600 INFO L495 AbstractCegarLoop]: Abstraction has 8116 states and 11901 transitions. [2022-11-03 01:51:41,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 01:51:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 8116 states and 11901 transitions. [2022-11-03 01:51:41,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2022-11-03 01:51:41,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:41,728 INFO L195 NwaCegarLoop]: trace histogram [137, 137, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:41,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:51:41,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-11-03 01:51:41,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 527117484, now seen corresponding path program 1 times [2022-11-03 01:51:41,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:41,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139003240] [2022-11-03 01:51:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:41,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 51749 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51749 trivial. 0 not checked. [2022-11-03 01:51:54,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:54,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139003240] [2022-11-03 01:51:54,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139003240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:54,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:54,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:51:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18287660] [2022-11-03 01:51:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:54,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:51:54,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:54,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:51:54,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:51:54,228 INFO L87 Difference]: Start difference. First operand 8116 states and 11901 transitions. Second operand has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) [2022-11-03 01:51:56,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:58,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:00,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:02,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:04,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:06,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:08,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:20,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:28,601 INFO L93 Difference]: Finished difference Result 13725 states and 20158 transitions. [2022-11-03 01:52:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:52:28,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) Word has length 1658 [2022-11-03 01:52:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:28,650 INFO L225 Difference]: With dead ends: 13725 [2022-11-03 01:52:28,651 INFO L226 Difference]: Without dead ends: 8180 [2022-11-03 01:52:28,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:52:28,686 INFO L413 NwaCegarLoop]: 6287 mSDtfsCounter, 11 mSDsluCounter, 42861 mSDsCounter, 0 mSdLazyCounter, 6063 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 43984 SdHoareTripleChecker+Invalid, 6068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6063 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:28,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 43984 Invalid, 6068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6063 Invalid, 5 Unknown, 0 Unchecked, 33.7s Time] [2022-11-03 01:52:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2022-11-03 01:52:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8160. [2022-11-03 01:52:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8160 states, 5097 states have (on average 1.3158720816166372) internal successors, (6707), 5344 states have internal predecessors, (6707), 2586 states have call successors, (2586), 465 states have call predecessors, (2586), 474 states have return successors, (2666), 2529 states have call predecessors, (2666), 2584 states have call successors, (2666) [2022-11-03 01:52:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8160 states to 8160 states and 11959 transitions. [2022-11-03 01:52:29,282 INFO L78 Accepts]: Start accepts. Automaton has 8160 states and 11959 transitions. Word has length 1658 [2022-11-03 01:52:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:29,287 INFO L495 AbstractCegarLoop]: Abstraction has 8160 states and 11959 transitions. [2022-11-03 01:52:29,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) [2022-11-03 01:52:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 8160 states and 11959 transitions. [2022-11-03 01:52:29,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1676 [2022-11-03 01:52:29,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:29,420 INFO L195 NwaCegarLoop]: trace histogram [139, 139, 68, 67, 67, 67, 67, 67, 67, 67, 67, 67, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:29,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:52:29,421 INFO L420 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)] === [2022-11-03 01:52:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash 83832020, now seen corresponding path program 1 times [2022-11-03 01:52:29,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:29,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123173997] [2022-11-03 01:52:29,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:30,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:52:30,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456916415] [2022-11-03 01:52:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:30,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:30,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:52:30,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:52:30,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:52:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:37,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 25793 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 01:52:37,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:52:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 52708 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 52202 trivial. 0 not checked. [2022-11-03 01:52:38,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:52:38,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:38,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123173997] [2022-11-03 01:52:38,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:52:38,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456916415] [2022-11-03 01:52:38,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456916415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:38,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:52:38,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:52:38,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460123965] [2022-11-03 01:52:38,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:38,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:52:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:52:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:52:38,071 INFO L87 Difference]: Start difference. First operand 8160 states and 11959 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) [2022-11-03 01:52:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:50,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:56,311 INFO L93 Difference]: Finished difference Result 13809 states and 20262 transitions. [2022-11-03 01:52:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:52:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) Word has length 1675 [2022-11-03 01:52:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:56,356 INFO L225 Difference]: With dead ends: 13809 [2022-11-03 01:52:56,357 INFO L226 Difference]: Without dead ends: 8220 [2022-11-03 01:52:56,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1675 GetRequests, 1670 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:52:56,389 INFO L413 NwaCegarLoop]: 6278 mSDtfsCounter, 53 mSDsluCounter, 28503 mSDsCounter, 0 mSdLazyCounter, 4323 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 31345 SdHoareTripleChecker+Invalid, 4326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4323 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:56,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 31345 Invalid, 4326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4323 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2022-11-03 01:52:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2022-11-03 01:52:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 8178. [2022-11-03 01:52:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8178 states, 5109 states have (on average 1.3151301624584066) internal successors, (6719), 5358 states have internal predecessors, (6719), 2588 states have call successors, (2588), 465 states have call predecessors, (2588), 478 states have return successors, (2672), 2535 states have call predecessors, (2672), 2586 states have call successors, (2672) [2022-11-03 01:52:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11979 transitions. [2022-11-03 01:52:56,966 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11979 transitions. Word has length 1675 [2022-11-03 01:52:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:56,969 INFO L495 AbstractCegarLoop]: Abstraction has 8178 states and 11979 transitions. [2022-11-03 01:52:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) [2022-11-03 01:52:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11979 transitions. [2022-11-03 01:52:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-03 01:52:57,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:57,017 INFO L195 NwaCegarLoop]: trace histogram [141, 141, 69, 68, 68, 68, 68, 68, 68, 68, 68, 68, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:57,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 01:52:57,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:57,243 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-11-03 01:52:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1342236349, now seen corresponding path program 1 times [2022-11-03 01:52:57,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:57,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951470613] [2022-11-03 01:52:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:57,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:58,125 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:52:58,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50704922] [2022-11-03 01:52:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:58,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:52:58,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:52:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:53:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:33,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 25897 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 01:53:33,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 54150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54150 trivial. 0 not checked. [2022-11-03 01:53:33,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:53:33,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:33,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951470613] [2022-11-03 01:53:33,806 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:53:33,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50704922] [2022-11-03 01:53:33,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50704922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:33,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:33,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:53:33,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694059010] [2022-11-03 01:53:33,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:33,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:53:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:33,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:53:33,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:53:33,810 INFO L87 Difference]: Start difference. First operand 8178 states and 11979 transitions. Second operand has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) [2022-11-03 01:53:36,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:42,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:44,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:44,575 INFO L93 Difference]: Finished difference Result 16348 states and 23949 transitions. [2022-11-03 01:53:44,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:53:44,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) Word has length 1696 [2022-11-03 01:53:44,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:44,621 INFO L225 Difference]: With dead ends: 16348 [2022-11-03 01:53:44,621 INFO L226 Difference]: Without dead ends: 8179 [2022-11-03 01:53:44,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1696 GetRequests, 1692 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:53:44,655 INFO L413 NwaCegarLoop]: 6275 mSDtfsCounter, 38 mSDsluCounter, 7154 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12557 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:44,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12557 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1778 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-11-03 01:53:44,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-11-03 01:53:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 8179. [2022-11-03 01:53:45,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8179 states, 5110 states have (on average 1.3150684931506849) internal successors, (6720), 5359 states have internal predecessors, (6720), 2588 states have call successors, (2588), 465 states have call predecessors, (2588), 478 states have return successors, (2672), 2535 states have call predecessors, (2672), 2586 states have call successors, (2672) [2022-11-03 01:53:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8179 states to 8179 states and 11980 transitions. [2022-11-03 01:53:45,367 INFO L78 Accepts]: Start accepts. Automaton has 8179 states and 11980 transitions. Word has length 1696 [2022-11-03 01:53:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:45,367 INFO L495 AbstractCegarLoop]: Abstraction has 8179 states and 11980 transitions. [2022-11-03 01:53:45,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) [2022-11-03 01:53:45,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8179 states and 11980 transitions. [2022-11-03 01:53:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1698 [2022-11-03 01:53:45,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:45,415 INFO L195 NwaCegarLoop]: trace histogram [141, 141, 69, 68, 68, 68, 68, 68, 68, 68, 68, 68, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:45,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:45,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:45,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2022-11-03 01:53:45,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:45,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1635554332, now seen corresponding path program 1 times [2022-11-03 01:53:45,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:45,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096024471] [2022-11-03 01:53:45,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:45,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:46,508 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:53:46,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581327289] [2022-11-03 01:53:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:46,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:46,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:46,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:46,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73373443-4c0d-4bed-9361-3451349d5431/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:54:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:33,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 25912 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:54:33,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 54151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54150 trivial. 0 not checked. [2022-11-03 01:54:33,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 54151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54150 trivial. 0 not checked. [2022-11-03 01:54:35,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096024471] [2022-11-03 01:54:35,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:54:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581327289] [2022-11-03 01:54:35,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581327289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:54:35,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [55438773] [2022-11-03 01:54:35,392 INFO L159 IcfgInterpreter]: Started Sifa with 482 locations of interest [2022-11-03 01:54:35,392 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:54:35,399 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:54:35,405 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:54:35,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs