./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS --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 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d --- 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-8393723 [2022-11-19 07:46:16,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:46:16,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:46:16,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:46:16,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:46:16,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:46:16,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:46:16,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:46:16,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:46:16,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:46:16,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:46:16,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:46:16,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:46:16,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:46:16,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:46:16,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:46:16,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:46:16,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:46:16,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:46:16,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:46:16,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:46:16,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:46:16,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:46:16,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:46:16,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:46:16,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:46:16,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:46:16,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:46:16,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:46:16,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:46:16,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:46:16,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:46:16,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:46:16,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:46:16,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:46:16,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:46:16,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:46:16,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:46:16,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:46:16,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:46:16,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:46:16,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:46:16,654 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:46:16,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:46:16,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:46:16,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:46:16,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:46:16,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:46:16,665 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:46:16,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:46:16,666 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:46:16,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:46:16,668 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:46:16,668 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:46:16,669 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:46:16,669 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:46:16,669 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:46:16,670 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:46:16,670 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:46:16,670 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:46:16,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:46:16,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:46:16,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:46:16,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:46:16,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:46:16,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:46:16,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:46:16,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:46:16,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:46:16,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:46:16,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:46:16,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:46:16,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:46:16,682 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:46:16,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:46:16,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:46:16,683 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:46:16,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:46:16,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:46:16,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:46:16,684 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d [2022-11-19 07:46:16,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:46:17,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:46:17,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:46:17,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:46:17,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:46:17,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2022-11-19 07:46:17,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/data/ec3f38157/9ab92b023ff34a389278e5d8397f6559/FLAG5532a97c2 [2022-11-19 07:46:18,691 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:46:18,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2022-11-19 07:46:18,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/data/ec3f38157/9ab92b023ff34a389278e5d8397f6559/FLAG5532a97c2 [2022-11-19 07:46:19,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/data/ec3f38157/9ab92b023ff34a389278e5d8397f6559 [2022-11-19 07:46:19,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:46:19,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:46:19,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:46:19,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:46:19,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:46:19,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:19" (1/1) ... [2022-11-19 07:46:19,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2d5fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:19, skipping insertion in model container [2022-11-19 07:46:19,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:19" (1/1) ... [2022-11-19 07:46:19,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:46:19,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:46:32,402 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2022-11-19 07:46:32,408 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2022-11-19 07:46:32,409 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2022-11-19 07:46:32,410 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2022-11-19 07:46:32,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:46:32,599 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:46:34,502 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2022-11-19 07:46:34,503 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2022-11-19 07:46:34,504 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2022-11-19 07:46:34,504 WARN L234 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_d4f1a44f-60a5-4985-bd37-510c3e9f11be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2022-11-19 07:46:34,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:46:35,011 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:46:35,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35 WrapperNode [2022-11-19 07:46:35,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:46:35,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:46:35,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:46:35,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:46:35,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:35,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:35,834 INFO L138 Inliner]: procedures = 926, calls = 10752, calls flagged for inlining = 465, calls inlined = 363, statements flattened = 15582 [2022-11-19 07:46:35,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:46:35,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:46:35,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:46:35,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:46:35,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:35,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:35,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:35,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:36,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:36,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:36,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:36,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:37,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:46:37,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:46:37,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:46:37,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:46:37,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (1/1) ... [2022-11-19 07:46:37,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:46:37,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:46:37,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:46:37,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f1a44f-60a5-4985-bd37-510c3e9f11be/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:46:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_free_data [2022-11-19 07:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_free_data [2022-11-19 07:46:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_remove_interface [2022-11-19 07:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_remove_interface [2022-11-19 07:46:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ioctl_siwmode [2022-11-19 07:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ioctl_siwmode [2022-11-19 07:46:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-19 07:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-19 07:46:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-19 07:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-19 07:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_tx_callback_register [2022-11-19 07:46:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_tx_callback_register [2022-11-19 07:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-11-19 07:46:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-11-19 07:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:46:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:46:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:46:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_stats_proc_open [2022-11-19 07:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_stats_proc_open [2022-11-19 07:46:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get_sta [2022-11-19 07:46:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get_sta [2022-11-19 07:46:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_mode_enable [2022-11-19 07:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_mode_enable [2022-11-19 07:46:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 07:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 07:46:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:46:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-11-19 07:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-11-19 07:46:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_60 [2022-11-19 07:46:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_60 [2022-11-19 07:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_tim [2022-11-19 07:46:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_tim [2022-11-19 07:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:46:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:46:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:46:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:46:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 07:46:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 07:46:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_deauth [2022-11-19 07:46:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_deauth [2022-11-19 07:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-19 07:46:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-19 07:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:46:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-19 07:46:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-19 07:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-11-19 07:46:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-11-19 07:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_send_mgmt [2022-11-19 07:46:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_send_mgmt [2022-11-19 07:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_open [2022-11-19 07:46:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_open [2022-11-19 07:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:46:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_del [2022-11-19 07:46:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_del [2022-11-19 07:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:46:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_mac_address [2022-11-19 07:46:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_mac_address [2022-11-19 07:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_handle_sta_release [2022-11-19 07:46:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_handle_sta_release [2022-11-19 07:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:46:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-11-19 07:46:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-11-19 07:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:46:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:46:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_flush_macs [2022-11-19 07:46:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_flush_macs [2022-11-19 07:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:46:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_sta_table_lock_of_ap_data [2022-11-19 07:46:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_sta_table_lock_of_ap_data [2022-11-19 07:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_host_roaming [2022-11-19 07:46:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_host_roaming [2022-11-19 07:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 07:46:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 07:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_local_info [2022-11-19 07:46:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_local_info [2022-11-19 07:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:46:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 07:46:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 07:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:46:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_get_drvinfo [2022-11-19 07:46:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_get_drvinfo [2022-11-19 07:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_change_mtu [2022-11-19 07:46:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_change_mtu [2022-11-19 07:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_deauth_all_stas [2022-11-19 07:46:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_deauth_all_stas [2022-11-19 07:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2022-11-19 07:46:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2022-11-19 07:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_sta_table_lock_of_ap_data [2022-11-19 07:46:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_sta_table_lock_of_ap_data [2022-11-19 07:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:46:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:46:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-19 07:46:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-19 07:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_crypt_proc_show [2022-11-19 07:46:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_crypt_proc_show [2022-11-19 07:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_word [2022-11-19 07:46:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_word [2022-11-19 07:46:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:46:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_sta [2022-11-19 07:46:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_sta [2022-11-19 07:46:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:46:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:46:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_genericelement [2022-11-19 07:46:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_genericelement [2022-11-19 07:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-19 07:46:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-19 07:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_roaming [2022-11-19 07:46:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_roaming [2022-11-19 07:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2022-11-19 07:46:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2022-11-19 07:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-19 07:46:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-19 07:46:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ap_debug_proc_open [2022-11-19 07:46:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_debug_proc_open [2022-11-19 07:46:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:46:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:46:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:46:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:46:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:46:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_check_tx_rates [2022-11-19 07:46:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_check_tx_rates [2022-11-19 07:46:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:46:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:46:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:46:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-19 07:46:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-19 07:46:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_show [2022-11-19 07:46:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_show [2022-11-19 07:46:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_hostapd [2022-11-19 07:46:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_hostapd [2022-11-19 07:46:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_show [2022-11-19 07:46:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_show [2022-11-19 07:46:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:46:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:46:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_report_scan_complete [2022-11-19 07:46:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_report_scan_complete [2022-11-19 07:46:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:46:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:46:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_stop [2022-11-19 07:46:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_stop [2022-11-19 07:46:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_get_porttype [2022-11-19 07:46:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_get_porttype [2022-11-19 07:46:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:46:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:46:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:46:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:46:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_interface [2022-11-19 07:46:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_interface [2022-11-19 07:46:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_update_comms_qual [2022-11-19 07:46:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_update_comms_qual [2022-11-19 07:46:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_107 [2022-11-19 07:46:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_107 [2022-11-19 07:46:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_expired_sta [2022-11-19 07:46:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_expired_sta [2022-11-19 07:46:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_start [2022-11-19 07:46:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_start [2022-11-19 07:46:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_show [2022-11-19 07:46:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_show [2022-11-19 07:46:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-11-19 07:46:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-11-19 07:46:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_74 [2022-11-19 07:46:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_74 [2022-11-19 07:46:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:46:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ap_free_sta [2022-11-19 07:46:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_free_sta [2022-11-19 07:46:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:46:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:46:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_62 [2022-11-19 07:46:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_62 [2022-11-19 07:46:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_header_parse [2022-11-19 07:46:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_header_parse [2022-11-19 07:46:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure ap_crypt_get_ptrs [2022-11-19 07:46:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_crypt_get_ptrs [2022-11-19 07:46:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_wds_link_oper [2022-11-19 07:46:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_wds_link_oper [2022-11-19 07:46:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2022-11-19 07:46:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2022-11-19 07:46:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_show [2022-11-19 07:46:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_show [2022-11-19 07:46:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-19 07:46:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-19 07:46:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:46:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:46:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure seq_list_start_head [2022-11-19 07:46:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_list_start_head [2022-11-19 07:46:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-19 07:46:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-19 07:46:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-19 07:46:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-19 07:46:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_encryption [2022-11-19 07:46:37,442 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_encryption [2022-11-19 07:46:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2022-11-19 07:46:37,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2022-11-19 07:46:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:46:37,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:46:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_stop [2022-11-19 07:46:37,444 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_stop [2022-11-19 07:46:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:46:37,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:46:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_proc_open [2022-11-19 07:46:37,445 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_proc_open [2022-11-19 07:46:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_get_hdrlen [2022-11-19 07:46:37,445 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_get_hdrlen [2022-11-19 07:46:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_new_sta [2022-11-19 07:46:37,446 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_new_sta [2022-11-19 07:46:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure eth_rebuild_header [2022-11-19 07:46:37,446 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_rebuild_header [2022-11-19 07:46:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 07:46:37,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 07:46:37,450 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_special_addr [2022-11-19 07:46:37,450 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_special_addr [2022-11-19 07:46:37,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_60 [2022-11-19 07:46:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_60 [2022-11-19 07:46:37,452 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:46:37,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:46:37,453 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_pda_proc_read [2022-11-19 07:46:37,454 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_pda_proc_read [2022-11-19 07:46:37,462 INFO L130 BoogieDeclarations]: Found specification of procedure ap_add_sta [2022-11-19 07:46:37,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_add_sta [2022-11-19 07:46:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:46:37,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:46:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-19 07:46:37,463 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-19 07:46:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:46:37,464 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:46:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:46:37,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:46:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_ioctl [2022-11-19 07:46:37,464 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_ioctl [2022-11-19 07:46:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:46:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 07:46:37,465 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 07:46:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-19 07:46:37,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-19 07:46:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:46:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:46:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:46:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:46:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure ap_sta_hash_del [2022-11-19 07:46:37,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_sta_hash_del [2022-11-19 07:46:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_aux_dump_proc_no_read [2022-11-19 07:46:37,467 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_aux_dump_proc_no_read [2022-11-19 07:46:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:46:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:46:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:46:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:46:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:46:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 07:46:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 07:46:37,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:46:37,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_75 [2022-11-19 07:46:37,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_75 [2022-11-19 07:46:37,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:46:37,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:46:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_debug_proc_open [2022-11-19 07:46:37,470 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_debug_proc_open [2022-11-19 07:46:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2022-11-19 07:46:37,470 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2022-11-19 07:46:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_get_crypto_ops [2022-11-19 07:46:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_get_crypto_ops [2022-11-19 07:46:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-19 07:46:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-19 07:46:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2022-11-19 07:46:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2022-11-19 07:46:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:46:37,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:46:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:46:37,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:46:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_add [2022-11-19 07:46:37,487 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_add [2022-11-19 07:46:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_multicast_list [2022-11-19 07:46:37,488 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_multicast_list [2022-11-19 07:46:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_hostapd_sta [2022-11-19 07:46:37,488 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_hostapd_sta [2022-11-19 07:46:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_stop [2022-11-19 07:46:37,489 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_stop [2022-11-19 07:46:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:46:37,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:46:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:46:37,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:46:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:46:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:46:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_63 [2022-11-19 07:46:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_63 [2022-11-19 07:46:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_open [2022-11-19 07:46:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_open [2022-11-19 07:46:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_stats_proc_show [2022-11-19 07:46:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_stats_proc_show [2022-11-19 07:46:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_next [2022-11-19 07:46:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_next [2022-11-19 07:46:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 07:46:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 07:46:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:46:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:46:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:46:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_auth_algs [2022-11-19 07:46:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_auth_algs [2022-11-19 07:46:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_debug_proc_show [2022-11-19 07:46:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_debug_proc_show [2022-11-19 07:46:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:46:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:46:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_kickall [2022-11-19 07:46:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_kickall [2022-11-19 07:46:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:46:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:46:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure ap_tx_rate_ok [2022-11-19 07:46:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_tx_rate_ok [2022-11-19 07:46:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 07:46:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 07:46:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_antsel [2022-11-19 07:46:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_antsel [2022-11-19 07:46:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-19 07:46:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-19 07:46:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hostap_exit_35_2 [2022-11-19 07:46:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hostap_exit_35_2 [2022-11-19 07:46:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:46:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:46:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:46:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:46:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 07:46:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 07:46:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_stop [2022-11-19 07:46:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_stop [2022-11-19 07:46:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-19 07:46:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-19 07:46:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_set_type [2022-11-19 07:46:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_set_type [2022-11-19 07:46:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_local_info [2022-11-19 07:46:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_local_info [2022-11-19 07:46:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-19 07:46:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-19 07:46:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:46:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:46:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:46:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2022-11-19 07:46:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2022-11-19 07:46:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:46:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-11-19 07:46:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-11-19 07:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:46:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:46:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:46:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_crypt_delayed_deinit [2022-11-19 07:46:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_crypt_delayed_deinit [2022-11-19 07:46:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_open [2022-11-19 07:46:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_open [2022-11-19 07:46:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:46:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:46:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-19 07:46:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-19 07:46:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure seq_list_next [2022-11-19 07:46:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_list_next [2022-11-19 07:46:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:46:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:46:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2022-11-19 07:46:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2022-11-19 07:46:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_crypt_proc_open [2022-11-19 07:46:37,520 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_crypt_proc_open [2022-11-19 07:46:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-19 07:46:37,520 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-19 07:46:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_open [2022-11-19 07:46:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_open [2022-11-19 07:46:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2022-11-19 07:46:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2022-11-19 07:46:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-19 07:46:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-19 07:46:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:46:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:46:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:46:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:46:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_108 [2022-11-19 07:46:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_108 [2022-11-19 07:46:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-19 07:46:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-19 07:46:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_stop [2022-11-19 07:46:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_stop [2022-11-19 07:46:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:46:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:46:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 07:46:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 07:46:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure ap_debug_proc_show [2022-11-19 07:46:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_debug_proc_show [2022-11-19 07:46:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:46:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:46:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:46:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_open [2022-11-19 07:46:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_open [2022-11-19 07:46:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_send_mgmt [2022-11-19 07:46:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_send_mgmt [2022-11-19 07:46:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:46:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:46:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:46:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_request_hostscan [2022-11-19 07:46:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_request_hostscan [2022-11-19 07:46:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:46:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:46:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:46:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_proc_show [2022-11-19 07:46:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_proc_show [2022-11-19 07:46:39,948 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:46:39,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:46:40,562 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:47:06,832 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:47:07,422 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:47:13,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:47:13,849 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:47:13,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:13 BoogieIcfgContainer [2022-11-19 07:47:13,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:47:13,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:47:13,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:47:13,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:47:13,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:19" (1/3) ... [2022-11-19 07:47:13,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a7dcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:13, skipping insertion in model container [2022-11-19 07:47:13,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:35" (2/3) ... [2022-11-19 07:47:13,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a7dcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:13, skipping insertion in model container [2022-11-19 07:47:13,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:13" (3/3) ... [2022-11-19 07:47:13,883 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2022-11-19 07:47:13,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:47:13,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:47:14,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:47:14,098 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;@35cf1fff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:47:14,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:47:14,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 3780 states, 2285 states have (on average 1.3435448577680524) internal successors, (3070), 2321 states have internal predecessors, (3070), 1289 states have call successors, (1289), 204 states have call predecessors, (1289), 203 states have return successors, (1280), 1271 states have call predecessors, (1280), 1280 states have call successors, (1280) [2022-11-19 07:47:14,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1458 [2022-11-19 07:47:14,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:14,279 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:14,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:47:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash -925545220, now seen corresponding path program 1 times [2022-11-19 07:47:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:14,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803050757] [2022-11-19 07:47:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:47:19,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:19,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803050757] [2022-11-19 07:47:19,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803050757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:19,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:19,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:47:19,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957975902] [2022-11-19 07:47:19,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:19,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:47:19,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:47:19,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:47:19,694 INFO L87 Difference]: Start difference. First operand has 3780 states, 2285 states have (on average 1.3435448577680524) internal successors, (3070), 2321 states have internal predecessors, (3070), 1289 states have call successors, (1289), 204 states have call predecessors, (1289), 203 states have return successors, (1280), 1271 states have call predecessors, (1280), 1280 states have call successors, (1280) Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2022-11-19 07:47:23,247 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 [] [2022-11-19 07:47:29,316 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 [] [2022-11-19 07:47:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:33,109 INFO L93 Difference]: Finished difference Result 10667 states and 16200 transitions. [2022-11-19 07:47:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:47:33,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) Word has length 1457 [2022-11-19 07:47:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:33,209 INFO L225 Difference]: With dead ends: 10667 [2022-11-19 07:47:33,209 INFO L226 Difference]: Without dead ends: 7162 [2022-11-19 07:47:33,249 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 [2022-11-19 07:47:33,256 INFO L413 NwaCegarLoop]: 6008 mSDtfsCounter, 5074 mSDsluCounter, 4871 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5080 SdHoareTripleChecker+Valid, 10879 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:33,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5080 Valid, 10879 Invalid, 1496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1478 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-11-19 07:47:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7162 states. [2022-11-19 07:47:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7162 to 7157. [2022-11-19 07:47:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7157 states, 4374 states have (on average 1.3497942386831276) internal successors, (5904), 4444 states have internal predecessors, (5904), 2378 states have call successors, (2378), 403 states have call predecessors, (2378), 402 states have return successors, (2380), 2355 states have call predecessors, (2380), 2374 states have call successors, (2380) [2022-11-19 07:47:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 10662 transitions. [2022-11-19 07:47:34,249 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 10662 transitions. Word has length 1457 [2022-11-19 07:47:34,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:34,254 INFO L495 AbstractCegarLoop]: Abstraction has 7157 states and 10662 transitions. [2022-11-19 07:47:34,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2022-11-19 07:47:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 10662 transitions. [2022-11-19 07:47:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2022-11-19 07:47:34,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:34,440 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:34,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:47:34,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:47:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:34,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2094514614, now seen corresponding path program 1 times [2022-11-19 07:47:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:34,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247715705] [2022-11-19 07:47:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:34,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:47:37,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:37,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247715705] [2022-11-19 07:47:37,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247715705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:37,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:37,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:47:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107293215] [2022-11-19 07:47:37,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:37,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:47:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:37,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:47:37,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:47:37,321 INFO L87 Difference]: Start difference. First operand 7157 states and 10662 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (153), 2 states have call predecessors, (153), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:47:40,339 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 [] [2022-11-19 07:47:45,647 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 [] [2022-11-19 07:47:49,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:49,473 INFO L93 Difference]: Finished difference Result 17395 states and 25896 transitions. [2022-11-19 07:47:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:47:49,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (153), 2 states have call predecessors, (153), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) Word has length 1475 [2022-11-19 07:47:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:49,562 INFO L225 Difference]: With dead ends: 17395 [2022-11-19 07:47:49,562 INFO L226 Difference]: Without dead ends: 10527 [2022-11-19 07:47:49,611 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 [2022-11-19 07:47:49,616 INFO L413 NwaCegarLoop]: 5992 mSDtfsCounter, 5048 mSDsluCounter, 4856 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 10848 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:49,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 10848 Invalid, 1489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1474 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2022-11-19 07:47:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-11-19 07:47:50,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 10497. [2022-11-19 07:47:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 6441 states have (on average 1.3524297469337059) internal successors, (8711), 6549 states have internal predecessors, (8711), 3444 states have call successors, (3444), 610 states have call predecessors, (3444), 609 states have return successors, (3452), 3406 states have call predecessors, (3452), 3440 states have call successors, (3452) [2022-11-19 07:47:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 15607 transitions. [2022-11-19 07:47:50,677 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 15607 transitions. Word has length 1475 [2022-11-19 07:47:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:50,681 INFO L495 AbstractCegarLoop]: Abstraction has 10497 states and 15607 transitions. [2022-11-19 07:47:50,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (153), 2 states have call predecessors, (153), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:47:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 15607 transitions. [2022-11-19 07:47:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2022-11-19 07:47:50,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:50,715 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:50,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:47:50,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:47:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:50,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1063126226, now seen corresponding path program 1 times [2022-11-19 07:47:50,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:50,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115731892] [2022-11-19 07:47:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:50,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:47:53,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:53,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115731892] [2022-11-19 07:47:53,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115731892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:53,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:53,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:47:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920392799] [2022-11-19 07:47:53,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:53,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:47:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:47:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:47:53,132 INFO L87 Difference]: Start difference. First operand 10497 states and 15607 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:47:56,109 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 [] [2022-11-19 07:48:00,475 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 [] [2022-11-19 07:48:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:04,856 INFO L93 Difference]: Finished difference Result 30850 states and 45922 transitions. [2022-11-19 07:48:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:04,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) Word has length 1473 [2022-11-19 07:48:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:04,996 INFO L225 Difference]: With dead ends: 30850 [2022-11-19 07:48:04,997 INFO L226 Difference]: Without dead ends: 20642 [2022-11-19 07:48:05,051 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 [2022-11-19 07:48:05,052 INFO L413 NwaCegarLoop]: 6026 mSDtfsCounter, 5102 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 10917 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:05,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 10917 Invalid, 1479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1466 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-11-19 07:48:05,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20642 states. [2022-11-19 07:48:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20642 to 20609. [2022-11-19 07:48:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20609 states, 12696 states have (on average 1.355072463768116) internal successors, (17204), 12913 states have internal predecessors, (17204), 6693 states have call successors, (6693), 1218 states have call predecessors, (6693), 1217 states have return successors, (6778), 6615 states have call predecessors, (6778), 6689 states have call successors, (6778) [2022-11-19 07:48:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20609 states to 20609 states and 30675 transitions. [2022-11-19 07:48:06,831 INFO L78 Accepts]: Start accepts. Automaton has 20609 states and 30675 transitions. Word has length 1473 [2022-11-19 07:48:06,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:06,833 INFO L495 AbstractCegarLoop]: Abstraction has 20609 states and 30675 transitions. [2022-11-19 07:48:06,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:06,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20609 states and 30675 transitions. [2022-11-19 07:48:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2022-11-19 07:48:06,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:06,867 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:06,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:48:06,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:48:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1059346285, now seen corresponding path program 1 times [2022-11-19 07:48:06,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:06,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391396997] [2022-11-19 07:48:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:06,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:48:09,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:09,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391396997] [2022-11-19 07:48:09,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391396997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:09,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:09,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:09,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269307512] [2022-11-19 07:48:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:09,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:09,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:09,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:09,838 INFO L87 Difference]: Start difference. First operand 20609 states and 30675 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:12,840 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 [] [2022-11-19 07:48:17,211 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 [] [2022-11-19 07:48:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:22,942 INFO L93 Difference]: Finished difference Result 61114 states and 91074 transitions. [2022-11-19 07:48:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) Word has length 1473 [2022-11-19 07:48:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:23,228 INFO L225 Difference]: With dead ends: 61114 [2022-11-19 07:48:23,228 INFO L226 Difference]: Without dead ends: 40794 [2022-11-19 07:48:23,327 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 [2022-11-19 07:48:23,328 INFO L413 NwaCegarLoop]: 6065 mSDtfsCounter, 5098 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 10956 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:23,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5104 Valid, 10956 Invalid, 1495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1482 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-11-19 07:48:23,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40794 states. [2022-11-19 07:48:26,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40794 to 40764. [2022-11-19 07:48:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 25176 states have (on average 1.355656180489355) internal successors, (34130), 25611 states have internal predecessors, (34130), 13152 states have call successors, (13152), 2434 states have call predecessors, (13152), 2433 states have return successors, (13450), 12994 states have call predecessors, (13450), 13148 states have call successors, (13450) [2022-11-19 07:48:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 60732 transitions. [2022-11-19 07:48:27,020 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 60732 transitions. Word has length 1473 [2022-11-19 07:48:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:27,022 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 60732 transitions. [2022-11-19 07:48:27,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 60732 transitions. [2022-11-19 07:48:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2022-11-19 07:48:27,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:27,056 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:27,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:48:27,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:48:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash 494419614, now seen corresponding path program 1 times [2022-11-19 07:48:27,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:27,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830278806] [2022-11-19 07:48:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:48:29,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:29,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830278806] [2022-11-19 07:48:29,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830278806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:29,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:29,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:29,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181456727] [2022-11-19 07:48:29,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:29,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:29,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:29,979 INFO L87 Difference]: Start difference. First operand 40764 states and 60732 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:32,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:37,224 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 [] [2022-11-19 07:48:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:44,472 INFO L93 Difference]: Finished difference Result 121447 states and 181159 transitions. [2022-11-19 07:48:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) Word has length 1474 [2022-11-19 07:48:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:45,195 INFO L225 Difference]: With dead ends: 121447 [2022-11-19 07:48:45,195 INFO L226 Difference]: Without dead ends: 80972 [2022-11-19 07:48:45,401 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 [2022-11-19 07:48:45,402 INFO L413 NwaCegarLoop]: 6012 mSDtfsCounter, 5097 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 10903 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:45,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5103 Valid, 10903 Invalid, 1474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1461 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-11-19 07:48:45,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80972 states. [2022-11-19 07:48:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80972 to 80942. [2022-11-19 07:48:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80942 states, 50076 states have (on average 1.3551801262081635) internal successors, (67862), 50947 states have internal predecessors, (67862), 25998 states have call successors, (25998), 4866 states have call predecessors, (25998), 4865 states have return successors, (26840), 25680 states have call predecessors, (26840), 25994 states have call successors, (26840) [2022-11-19 07:48:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80942 states to 80942 states and 120700 transitions. [2022-11-19 07:48:53,366 INFO L78 Accepts]: Start accepts. Automaton has 80942 states and 120700 transitions. Word has length 1474 [2022-11-19 07:48:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:53,369 INFO L495 AbstractCegarLoop]: Abstraction has 80942 states and 120700 transitions. [2022-11-19 07:48:53,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 80942 states and 120700 transitions. [2022-11-19 07:48:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2022-11-19 07:48:53,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:53,423 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 144, 144, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:53,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:48:53,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:48:53,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:53,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1983282091, now seen corresponding path program 1 times [2022-11-19 07:48:53,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:53,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961225530] [2022-11-19 07:48:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:53,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2022-11-19 07:48:56,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:56,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961225530] [2022-11-19 07:48:56,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961225530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:56,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:56,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948291179] [2022-11-19 07:48:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:56,184 INFO L87 Difference]: Start difference. First operand 80942 states and 120700 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) [2022-11-19 07:48:59,104 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 [] [2022-11-19 07:49:04,106 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 [] [2022-11-19 07:49:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:15,280 INFO L93 Difference]: Finished difference Result 241813 states and 361035 transitions. [2022-11-19 07:49:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:49:15,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (149), 2 states have call predecessors, (149), 1 states have return successors, (146), 2 states have call predecessors, (146), 2 states have call successors, (146) Word has length 1475 [2022-11-19 07:49:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:16,584 INFO L225 Difference]: With dead ends: 241813 [2022-11-19 07:49:16,584 INFO L226 Difference]: Without dead ends: 161160 [2022-11-19 07:49:16,986 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 [2022-11-19 07:49:16,988 INFO L413 NwaCegarLoop]: 6012 mSDtfsCounter, 5102 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 10903 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:16,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 10903 Invalid, 1474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1461 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-19 07:49:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161160 states.