./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/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_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:49:00,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:49:00,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:49:00,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:49:00,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:49:00,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:49:00,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:49:00,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:49:00,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:49:00,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:49:00,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:49:00,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:49:00,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:49:00,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:49:00,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:49:00,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:49:00,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:49:00,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:49:00,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:49:00,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:49:00,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:49:00,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:49:00,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:49:00,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:49:00,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:49:00,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:49:00,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:49:00,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:49:00,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:49:00,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:49:00,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:49:00,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:49:00,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:49:00,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:49:00,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:49:00,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:49:00,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:49:00,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:49:00,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:49:00,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:49:00,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:49:00,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:49:00,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:49:00,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:49:00,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:49:00,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:49:00,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:49:00,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:49:00,881 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:49:00,882 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:49:00,882 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:49:00,882 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:49:00,883 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:49:00,883 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:49:00,883 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:49:00,883 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:49:00,884 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:49:00,884 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:49:00,884 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:49:00,885 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:49:00,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:49:00,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:49:00,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:49:00,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:49:00,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:49:00,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:49:00,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:49:00,887 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:49:00,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:49:00,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:49:00,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:49:00,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:00,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:49:00,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:49:00,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:49:00,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:49:00,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:49:00,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:49:00,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:49:00,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:49:00,891 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d [2021-11-25 17:49:01,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:49:01,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:49:01,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:49:01,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:49:01,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:49:01,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-25 17:49:01,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/data/20fa97a74/74af3f51de2a4c71b42bbbbadc5aac56/FLAGcd7df0e8a [2021-11-25 17:49:02,734 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:49:02,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-25 17:49:02,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/data/20fa97a74/74af3f51de2a4c71b42bbbbadc5aac56/FLAGcd7df0e8a [2021-11-25 17:49:03,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/data/20fa97a74/74af3f51de2a4c71b42bbbbadc5aac56 [2021-11-25 17:49:03,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:49:03,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:49:03,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:03,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:49:03,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:49:03,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:03" (1/1) ... [2021-11-25 17:49:03,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbbf0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:03, skipping insertion in model container [2021-11-25 17:49:03,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:03" (1/1) ... [2021-11-25 17:49:03,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:49:03,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:49:16,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2021-11-25 17:49:16,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2021-11-25 17:49:16,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2021-11-25 17:49:16,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2021-11-25 17:49:16,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:16,847 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:49:18,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2021-11-25 17:49:18,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2021-11-25 17:49:18,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2021-11-25 17:49:18,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2021-11-25 17:49:18,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:18,614 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:49:18,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18 WrapperNode [2021-11-25 17:49:18,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:18,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:18,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:49:18,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:49:18,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:18,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,541 INFO L137 Inliner]: procedures = 926, calls = 10616, calls flagged for inlining = 465, calls inlined = 363, statements flattened = 15484 [2021-11-25 17:49:19,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:19,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:49:19,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:49:19,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:49:19,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:19,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:20,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:20,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:49:20,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:49:20,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:49:20,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:49:20,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (1/1) ... [2021-11-25 17:49:20,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:20,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:49:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d30e040d-5bb0-43e2-a487-a9e271c1b1fb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:49:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_free_data [2021-11-25 17:49:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_free_data [2021-11-25 17:49:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_remove_interface [2021-11-25 17:49:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_remove_interface [2021-11-25 17:49:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ioctl_siwmode [2021-11-25 17:49:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ioctl_siwmode [2021-11-25 17:49:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-11-25 17:49:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-11-25 17:49:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-25 17:49:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-25 17:49:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_tx_callback_register [2021-11-25 17:49:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_tx_callback_register [2021-11-25 17:49:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-11-25 17:49:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-11-25 17:49:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2021-11-25 17:49:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2021-11-25 17:49:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 17:49:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 17:49:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_stats_proc_open [2021-11-25 17:49:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_stats_proc_open [2021-11-25 17:49:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 17:49:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 17:49:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get_sta [2021-11-25 17:49:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get_sta [2021-11-25 17:49:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_mode_enable [2021-11-25 17:49:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_mode_enable [2021-11-25 17:49:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-25 17:49:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-25 17:49:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 17:49:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2021-11-25 17:49:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2021-11-25 17:49:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_60 [2021-11-25 17:49:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_60 [2021-11-25 17:49:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_tim [2021-11-25 17:49:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_tim [2021-11-25 17:49:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:49:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:49:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 17:49:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 17:49:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 17:49:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 17:49:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_deauth [2021-11-25 17:49:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_deauth [2021-11-25 17:49:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-25 17:49:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-25 17:49:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 17:49:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 17:49:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-25 17:49:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-25 17:49:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2021-11-25 17:49:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2021-11-25 17:49:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_send_mgmt [2021-11-25 17:49:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_send_mgmt [2021-11-25 17:49:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:49:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_open [2021-11-25 17:49:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_open [2021-11-25 17:49:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 17:49:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 17:49:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_del [2021-11-25 17:49:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_del [2021-11-25 17:49:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 17:49:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 17:49:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_mac_address [2021-11-25 17:49:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_mac_address [2021-11-25 17:49:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_handle_sta_release [2021-11-25 17:49:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_handle_sta_release [2021-11-25 17:49:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 17:49:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 17:49:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2021-11-25 17:49:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2021-11-25 17:49:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:49:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 17:49:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 17:49:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 17:49:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 17:49:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_flush_macs [2021-11-25 17:49:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_flush_macs [2021-11-25 17:49:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 17:49:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 17:49:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_sta_table_lock_of_ap_data [2021-11-25 17:49:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_sta_table_lock_of_ap_data [2021-11-25 17:49:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_host_roaming [2021-11-25 17:49:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_host_roaming [2021-11-25 17:49:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 17:49:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 17:49:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_local_info [2021-11-25 17:49:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_local_info [2021-11-25 17:49:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:49:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 17:49:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 17:49:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:49:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 17:49:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 17:49:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 17:49:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-25 17:49:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-25 17:49:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_get_drvinfo [2021-11-25 17:49:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_get_drvinfo [2021-11-25 17:49:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_change_mtu [2021-11-25 17:49:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_change_mtu [2021-11-25 17:49:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_deauth_all_stas [2021-11-25 17:49:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_deauth_all_stas [2021-11-25 17:49:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2021-11-25 17:49:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2021-11-25 17:49:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_sta_table_lock_of_ap_data [2021-11-25 17:49:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_sta_table_lock_of_ap_data [2021-11-25 17:49:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 17:49:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 17:49:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:49:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:49:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-25 17:49:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-25 17:49:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_crypt_proc_show [2021-11-25 17:49:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_crypt_proc_show [2021-11-25 17:49:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_word [2021-11-25 17:49:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_word [2021-11-25 17:49:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:49:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_sta [2021-11-25 17:49:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_sta [2021-11-25 17:49:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 17:49:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 17:49:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 17:49:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 17:49:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_genericelement [2021-11-25 17:49:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_genericelement [2021-11-25 17:49:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-25 17:49:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-25 17:49:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_roaming [2021-11-25 17:49:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_roaming [2021-11-25 17:49:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2021-11-25 17:49:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2021-11-25 17:49:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2021-11-25 17:49:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2021-11-25 17:49:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure ap_debug_proc_open [2021-11-25 17:49:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_debug_proc_open [2021-11-25 17:49:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:49:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:49:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:49:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 17:49:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 17:49:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_check_tx_rates [2021-11-25 17:49:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_check_tx_rates [2021-11-25 17:49:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:49:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 17:49:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 17:49:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-25 17:49:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-25 17:49:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_show [2021-11-25 17:49:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_show [2021-11-25 17:49:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_hostapd [2021-11-25 17:49:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_hostapd [2021-11-25 17:49:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_show [2021-11-25 17:49:20,632 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_show [2021-11-25 17:49:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 17:49:20,632 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 17:49:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_report_scan_complete [2021-11-25 17:49:20,632 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_report_scan_complete [2021-11-25 17:49:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 17:49:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 17:49:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_stop [2021-11-25 17:49:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_stop [2021-11-25 17:49:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_get_porttype [2021-11-25 17:49:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_get_porttype [2021-11-25 17:49:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 17:49:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 17:49:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 17:49:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 17:49:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_interface [2021-11-25 17:49:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_interface [2021-11-25 17:49:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_update_comms_qual [2021-11-25 17:49:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_update_comms_qual [2021-11-25 17:49:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_107 [2021-11-25 17:49:20,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_107 [2021-11-25 17:49:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_expired_sta [2021-11-25 17:49:20,635 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_expired_sta [2021-11-25 17:49:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_start [2021-11-25 17:49:20,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_start [2021-11-25 17:49:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_show [2021-11-25 17:49:20,635 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_show [2021-11-25 17:49:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2021-11-25 17:49:20,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2021-11-25 17:49:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_74 [2021-11-25 17:49:20,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_74 [2021-11-25 17:49:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:49:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure ap_free_sta [2021-11-25 17:49:20,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_free_sta [2021-11-25 17:49:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:49:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:49:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_62 [2021-11-25 17:49:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_62 [2021-11-25 17:49:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_header_parse [2021-11-25 17:49:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_header_parse [2021-11-25 17:49:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ap_crypt_get_ptrs [2021-11-25 17:49:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_crypt_get_ptrs [2021-11-25 17:49:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_wds_link_oper [2021-11-25 17:49:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_wds_link_oper [2021-11-25 17:49:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2021-11-25 17:49:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2021-11-25 17:49:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_show [2021-11-25 17:49:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_show [2021-11-25 17:49:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-25 17:49:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-25 17:49:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 17:49:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 17:49:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure seq_list_start_head [2021-11-25 17:49:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_list_start_head [2021-11-25 17:49:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-25 17:49:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-25 17:49:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-11-25 17:49:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-11-25 17:49:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_encryption [2021-11-25 17:49:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_encryption [2021-11-25 17:49:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2021-11-25 17:49:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2021-11-25 17:49:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:49:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:49:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_stop [2021-11-25 17:49:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_stop [2021-11-25 17:49:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:49:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:49:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_proc_open [2021-11-25 17:49:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_proc_open [2021-11-25 17:49:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_get_hdrlen [2021-11-25 17:49:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_get_hdrlen [2021-11-25 17:49:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_new_sta [2021-11-25 17:49:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_new_sta [2021-11-25 17:49:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure eth_rebuild_header [2021-11-25 17:49:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_rebuild_header [2021-11-25 17:49:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 17:49:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 17:49:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_special_addr [2021-11-25 17:49:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_special_addr [2021-11-25 17:49:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_60 [2021-11-25 17:49:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_60 [2021-11-25 17:49:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 17:49:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 17:49:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_pda_proc_read [2021-11-25 17:49:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_pda_proc_read [2021-11-25 17:49:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure ap_add_sta [2021-11-25 17:49:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_add_sta [2021-11-25 17:49:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 17:49:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 17:49:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-25 17:49:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-25 17:49:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 17:49:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 17:49:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 17:49:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 17:49:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_ioctl [2021-11-25 17:49:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_ioctl [2021-11-25 17:49:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:49:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 17:49:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 17:49:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 17:49:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 17:49:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 17:49:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 17:49:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 17:49:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 17:49:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure ap_sta_hash_del [2021-11-25 17:49:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_sta_hash_del [2021-11-25 17:49:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_aux_dump_proc_no_read [2021-11-25 17:49:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_aux_dump_proc_no_read [2021-11-25 17:49:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 17:49:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 17:49:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 17:49:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 17:49:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 17:49:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 17:49:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 17:49:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:49:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_75 [2021-11-25 17:49:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_75 [2021-11-25 17:49:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 17:49:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 17:49:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_debug_proc_open [2021-11-25 17:49:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_debug_proc_open [2021-11-25 17:49:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2021-11-25 17:49:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2021-11-25 17:49:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_get_crypto_ops [2021-11-25 17:49:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_get_crypto_ops [2021-11-25 17:49:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-25 17:49:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-25 17:49:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2021-11-25 17:49:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2021-11-25 17:49:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:49:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:49:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_add [2021-11-25 17:49:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_add [2021-11-25 17:49:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_multicast_list [2021-11-25 17:49:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_multicast_list [2021-11-25 17:49:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_hostapd_sta [2021-11-25 17:49:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_hostapd_sta [2021-11-25 17:49:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_stop [2021-11-25 17:49:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_stop [2021-11-25 17:49:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 17:49:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 17:49:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 17:49:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 17:49:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 17:49:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 17:49:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_63 [2021-11-25 17:49:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_63 [2021-11-25 17:49:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_open [2021-11-25 17:49:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_open [2021-11-25 17:49:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_stats_proc_show [2021-11-25 17:49:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_stats_proc_show [2021-11-25 17:49:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_proc_next [2021-11-25 17:49:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_proc_next [2021-11-25 17:49:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 17:49:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 17:49:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 17:49:20,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 17:49:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 17:49:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_auth_algs [2021-11-25 17:49:20,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_auth_algs [2021-11-25 17:49:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_debug_proc_show [2021-11-25 17:49:20,669 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_debug_proc_show [2021-11-25 17:49:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:49:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:49:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_kickall [2021-11-25 17:49:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_kickall [2021-11-25 17:49:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 17:49:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 17:49:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure ap_tx_rate_ok [2021-11-25 17:49:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_tx_rate_ok [2021-11-25 17:49:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-25 17:49:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-25 17:49:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_antsel [2021-11-25 17:49:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_antsel [2021-11-25 17:49:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2021-11-25 17:49:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2021-11-25 17:49:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hostap_exit_35_2 [2021-11-25 17:49:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hostap_exit_35_2 [2021-11-25 17:49:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 17:49:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 17:49:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 17:49:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 17:49:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 17:49:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 17:49:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_stop [2021-11-25 17:49:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_stop [2021-11-25 17:49:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2021-11-25 17:49:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2021-11-25 17:49:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_set_type [2021-11-25 17:49:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_set_type [2021-11-25 17:49:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_local_info [2021-11-25 17:49:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_local_info [2021-11-25 17:49:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-25 17:49:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-25 17:49:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:49:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:49:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:49:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-25 17:49:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-25 17:49:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 17:49:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 17:49:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-11-25 17:49:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-11-25 17:49:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 17:49:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 17:49:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 17:49:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 17:49:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_crypt_delayed_deinit [2021-11-25 17:49:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_crypt_delayed_deinit [2021-11-25 17:49:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_bss_list_proc_open [2021-11-25 17:49:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_bss_list_proc_open [2021-11-25 17:49:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 17:49:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 17:49:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-25 17:49:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-25 17:49:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure seq_list_next [2021-11-25 17:49:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_list_next [2021-11-25 17:49:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:49:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:49:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2021-11-25 17:49:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2021-11-25 17:49:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_crypt_proc_open [2021-11-25 17:49:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_crypt_proc_open [2021-11-25 17:49:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-25 17:49:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-25 17:49:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_scan_results_proc_open [2021-11-25 17:49:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_scan_results_proc_open [2021-11-25 17:49:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2021-11-25 17:49:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2021-11-25 17:49:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 17:49:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 17:49:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 17:49:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 17:49:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 17:49:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 17:49:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_108 [2021-11-25 17:49:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_108 [2021-11-25 17:49:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-25 17:49:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-25 17:49:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ap_proc_stop [2021-11-25 17:49:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ap_proc_stop [2021-11-25 17:49:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 17:49:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 17:49:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 17:49:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 17:49:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ap_debug_proc_show [2021-11-25 17:49:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_debug_proc_show [2021-11-25 17:49:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 17:49:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 17:49:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:49:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_proc_open [2021-11-25 17:49:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_proc_open [2021-11-25 17:49:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_send_mgmt [2021-11-25 17:49:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_send_mgmt [2021-11-25 17:49:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:49:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:49:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:49:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_request_hostscan [2021-11-25 17:49:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_request_hostscan [2021-11-25 17:49:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 17:49:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 17:49:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 17:49:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_proc_show [2021-11-25 17:49:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_proc_show [2021-11-25 17:49:22,928 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:49:22,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:49:23,487 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 17:49:45,143 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 17:49:45,510 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:49:49,857 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:49:49,857 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 17:49:49,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:49 BoogieIcfgContainer [2021-11-25 17:49:49,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:49:49,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:49:49,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:49:49,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:49:49,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:49:03" (1/3) ... [2021-11-25 17:49:49,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18678812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:49, skipping insertion in model container [2021-11-25 17:49:49,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:18" (2/3) ... [2021-11-25 17:49:49,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18678812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:49, skipping insertion in model container [2021-11-25 17:49:49,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:49" (3/3) ... [2021-11-25 17:49:49,877 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-25 17:49:49,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:49:49,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 17:49:49,945 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:49:49,951 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:49:49,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 17:49:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 3781 states, 2286 states have (on average 1.3433945756780403) internal successors, (3071), 2322 states have internal predecessors, (3071), 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) [2021-11-25 17:49:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1458 [2021-11-25 17:49:50,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:50,159 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:49:50,159 INFO L402 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)] === [2021-11-25 17:49:50,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash -265850540, now seen corresponding path program 1 times [2021-11-25 17:49:50,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:50,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529169175] [2021-11-25 17:49:50,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:50,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:49:52,762 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:52,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529169175] [2021-11-25 17:49:52,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529169175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:52,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:52,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:52,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552336472] [2021-11-25 17:49:52,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:52,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:52,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:52,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:52,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:52,824 INFO L87 Difference]: Start difference. First operand has 3781 states, 2286 states have (on average 1.3433945756780403) internal successors, (3071), 2322 states have internal predecessors, (3071), 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) [2021-11-25 17:49:55,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:00,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:02,483 INFO L93 Difference]: Finished difference Result 10670 states and 16203 transitions. [2021-11-25 17:50:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:02,487 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 [2021-11-25 17:50:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:02,581 INFO L225 Difference]: With dead ends: 10670 [2021-11-25 17:50:02,582 INFO L226 Difference]: Without dead ends: 7164 [2021-11-25 17:50:02,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:02,619 INFO L933 BasicCegarLoop]: 6005 mSDtfsCounter, 5075 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 10873 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:02,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5081 Valid, 10873 Invalid, 1504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1486 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2021-11-25 17:50:02,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7164 states. [2021-11-25 17:50:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7164 to 7159. [2021-11-25 17:50:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7159 states, 4376 states have (on average 1.34963436928702) internal successors, (5906), 4446 states have internal predecessors, (5906), 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) [2021-11-25 17:50:03,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7159 states to 7159 states and 10664 transitions. [2021-11-25 17:50:03,398 INFO L78 Accepts]: Start accepts. Automaton has 7159 states and 10664 transitions. Word has length 1457 [2021-11-25 17:50:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:03,409 INFO L470 AbstractCegarLoop]: Abstraction has 7159 states and 10664 transitions. [2021-11-25 17:50:03,410 INFO L471 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) [2021-11-25 17:50:03,411 INFO L276 IsEmpty]: Start isEmpty. Operand 7159 states and 10664 transitions. [2021-11-25 17:50:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2021-11-25 17:50:03,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:03,539 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:50:03,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:50:03,543 INFO L402 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)] === [2021-11-25 17:50:03,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1910551608, now seen corresponding path program 1 times [2021-11-25 17:50:03,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:03,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990263754] [2021-11-25 17:50:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:03,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:50:05,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:05,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990263754] [2021-11-25 17:50:05,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990263754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:05,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:05,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:05,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53417347] [2021-11-25 17:50:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:05,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:05,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:05,307 INFO L87 Difference]: Start difference. First operand 7159 states and 10664 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) [2021-11-25 17:50:07,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:12,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:15,251 INFO L93 Difference]: Finished difference Result 17400 states and 25901 transitions. [2021-11-25 17:50:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:15,253 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 [2021-11-25 17:50:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:15,356 INFO L225 Difference]: With dead ends: 17400 [2021-11-25 17:50:15,357 INFO L226 Difference]: Without dead ends: 10530 [2021-11-25 17:50:15,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:15,399 INFO L933 BasicCegarLoop]: 5989 mSDtfsCounter, 5049 mSDsluCounter, 5563 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 10842 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:15,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5055 Valid, 10842 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1482 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-11-25 17:50:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2021-11-25 17:50:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 10500. [2021-11-25 17:50:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10500 states, 6444 states have (on average 1.3522656734947238) internal successors, (8714), 6552 states have internal predecessors, (8714), 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) [2021-11-25 17:50:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10500 states to 10500 states and 15610 transitions. [2021-11-25 17:50:16,142 INFO L78 Accepts]: Start accepts. Automaton has 10500 states and 15610 transitions. Word has length 1475 [2021-11-25 17:50:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:16,146 INFO L470 AbstractCegarLoop]: Abstraction has 10500 states and 15610 transitions. [2021-11-25 17:50:16,147 INFO L471 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) [2021-11-25 17:50:16,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10500 states and 15610 transitions. [2021-11-25 17:50:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2021-11-25 17:50:16,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:16,176 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:50:16,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:50:16,177 INFO L402 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)] === [2021-11-25 17:50:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash 853430129, now seen corresponding path program 1 times [2021-11-25 17:50:16,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:16,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131019146] [2021-11-25 17:50:16,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:16,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:50:17,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:17,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131019146] [2021-11-25 17:50:17,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131019146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:17,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:17,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:17,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372260291] [2021-11-25 17:50:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:17,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:17,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:17,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:17,982 INFO L87 Difference]: Start difference. First operand 10500 states and 15610 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) [2021-11-25 17:50:20,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:24,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:26,895 INFO L93 Difference]: Finished difference Result 30853 states and 45922 transitions. [2021-11-25 17:50:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:26,896 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 [2021-11-25 17:50:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:27,059 INFO L225 Difference]: With dead ends: 30853 [2021-11-25 17:50:27,059 INFO L226 Difference]: Without dead ends: 20642 [2021-11-25 17:50:27,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:27,115 INFO L933 BasicCegarLoop]: 6064 mSDtfsCounter, 5099 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5105 SdHoareTripleChecker+Valid, 10952 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:27,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5105 Valid, 10952 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1490 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-25 17:50:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20642 states. [2021-11-25 17:50:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20642 to 20612. [2021-11-25 17:50:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20612 states, 12702 states have (on average 1.3549047394111164) internal successors, (17210), 12919 states have internal predecessors, (17210), 6690 states have call successors, (6690), 1218 states have call predecessors, (6690), 1217 states have return successors, (6775), 6612 states have call predecessors, (6775), 6686 states have call successors, (6775) [2021-11-25 17:50:28,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20612 states to 20612 states and 30675 transitions. [2021-11-25 17:50:28,445 INFO L78 Accepts]: Start accepts. Automaton has 20612 states and 30675 transitions. Word has length 1473 [2021-11-25 17:50:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:28,447 INFO L470 AbstractCegarLoop]: Abstraction has 20612 states and 30675 transitions. [2021-11-25 17:50:28,448 INFO L471 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) [2021-11-25 17:50:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 20612 states and 30675 transitions. [2021-11-25 17:50:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2021-11-25 17:50:28,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:28,476 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:50:28,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:50:28,476 INFO L402 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)] === [2021-11-25 17:50:28,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:28,477 INFO L85 PathProgramCache]: Analyzing trace with hash 797022028, now seen corresponding path program 1 times [2021-11-25 17:50:28,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:28,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464850882] [2021-11-25 17:50:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:28,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:50:30,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:30,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464850882] [2021-11-25 17:50:30,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464850882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:30,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:30,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:30,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417096981] [2021-11-25 17:50:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:30,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:30,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:30,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:30,168 INFO L87 Difference]: Start difference. First operand 20612 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) [2021-11-25 17:50:32,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:36,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:39,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:39,445 INFO L93 Difference]: Finished difference Result 61135 states and 91092 transitions. [2021-11-25 17:50:39,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:39,446 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 [2021-11-25 17:50:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:39,687 INFO L225 Difference]: With dead ends: 61135 [2021-11-25 17:50:39,687 INFO L226 Difference]: Without dead ends: 40812 [2021-11-25 17:50:40,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:40,005 INFO L933 BasicCegarLoop]: 6008 mSDtfsCounter, 5103 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 10896 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:40,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5109 Valid, 10896 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1469 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 17:50:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40812 states. [2021-11-25 17:50:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40812 to 40776. [2021-11-25 17:50:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40776 states, 25188 states have (on average 1.3554867397173258) internal successors, (34142), 25623 states have internal predecessors, (34142), 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) [2021-11-25 17:50:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40776 states to 40776 states and 60744 transitions. [2021-11-25 17:50:42,757 INFO L78 Accepts]: Start accepts. Automaton has 40776 states and 60744 transitions. Word has length 1473 [2021-11-25 17:50:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:42,759 INFO L470 AbstractCegarLoop]: Abstraction has 40776 states and 60744 transitions. [2021-11-25 17:50:42,759 INFO L471 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) [2021-11-25 17:50:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 40776 states and 60744 transitions. [2021-11-25 17:50:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2021-11-25 17:50:42,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:42,802 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:50:42,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:50:42,803 INFO L402 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)] === [2021-11-25 17:50:42,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:42,804 INFO L85 PathProgramCache]: Analyzing trace with hash 538078206, now seen corresponding path program 1 times [2021-11-25 17:50:42,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:42,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383774463] [2021-11-25 17:50:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:42,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:50:44,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:44,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383774463] [2021-11-25 17:50:44,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383774463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:44,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:44,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:44,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639361232] [2021-11-25 17:50:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:44,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:44,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:44,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:44,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:44,662 INFO L87 Difference]: Start difference. First operand 40776 states and 60744 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) [2021-11-25 17:50:47,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:50,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:54,976 INFO L93 Difference]: Finished difference Result 121483 states and 181195 transitions. [2021-11-25 17:50:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:54,977 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 [2021-11-25 17:50:54,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:55,705 INFO L225 Difference]: With dead ends: 121483 [2021-11-25 17:50:55,706 INFO L226 Difference]: Without dead ends: 80996 [2021-11-25 17:50:55,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:55,850 INFO L933 BasicCegarLoop]: 6007 mSDtfsCounter, 5098 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 10895 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:55,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5104 Valid, 10895 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1469 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-25 17:50:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80996 states. [2021-11-25 17:50:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80996 to 80966. [2021-11-25 17:50:59,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80966 states, 50100 states have (on average 1.3550099800399202) internal successors, (67886), 50971 states have internal predecessors, (67886), 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) [2021-11-25 17:51:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80966 states to 80966 states and 120724 transitions. [2021-11-25 17:51:00,323 INFO L78 Accepts]: Start accepts. Automaton has 80966 states and 120724 transitions. Word has length 1474 [2021-11-25 17:51:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:00,325 INFO L470 AbstractCegarLoop]: Abstraction has 80966 states and 120724 transitions. [2021-11-25 17:51:00,325 INFO L471 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) [2021-11-25 17:51:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 80966 states and 120724 transitions. [2021-11-25 17:51:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2021-11-25 17:51:00,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:00,354 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:51:00,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:51:00,354 INFO L402 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)] === [2021-11-25 17:51:00,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1277320953, now seen corresponding path program 1 times [2021-11-25 17:51:00,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:00,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509598953] [2021-11-25 17:51:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:00,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:51:01,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509598953] [2021-11-25 17:51:01,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509598953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:01,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:01,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:01,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200985679] [2021-11-25 17:51:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:01,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:01,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:01,931 INFO L87 Difference]: Start difference. First operand 80966 states and 120724 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) [2021-11-25 17:51:04,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:07,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:13,815 INFO L93 Difference]: Finished difference Result 241885 states and 361107 transitions. [2021-11-25 17:51:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:13,816 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 [2021-11-25 17:51:13,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:14,560 INFO L225 Difference]: With dead ends: 241885 [2021-11-25 17:51:14,560 INFO L226 Difference]: Without dead ends: 161208 [2021-11-25 17:51:15,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:15,088 INFO L933 BasicCegarLoop]: 6009 mSDtfsCounter, 5103 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 10897 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:15,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5109 Valid, 10897 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1469 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-25 17:51:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161208 states. [2021-11-25 17:51:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161208 to 161178. [2021-11-25 17:51:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161178 states, 99852 states have (on average 1.3538236590153427) internal successors, (135182), 101595 states have internal predecessors, (135182), 51594 states have call successors, (51594), 9730 states have call predecessors, (51594), 9729 states have return successors, (53760), 50956 states have call predecessors, (53760), 51590 states have call successors, (53760) [2021-11-25 17:51:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161178 states to 161178 states and 240536 transitions. [2021-11-25 17:51:22,910 INFO L78 Accepts]: Start accepts. Automaton has 161178 states and 240536 transitions. Word has length 1475 [2021-11-25 17:51:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:22,912 INFO L470 AbstractCegarLoop]: Abstraction has 161178 states and 240536 transitions. [2021-11-25 17:51:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-25 17:51:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 161178 states and 240536 transitions. [2021-11-25 17:51:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2021-11-25 17:51:22,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:22,941 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-11-25 17:51:22,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:51:22,941 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-25 17:51:22,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash 368589295, now seen corresponding path program 1 times [2021-11-25 17:51:22,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:22,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592556304] [2021-11-25 17:51:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:22,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 82656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82656 trivial. 0 not checked. [2021-11-25 17:51:24,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:24,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592556304] [2021-11-25 17:51:24,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592556304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:24,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:24,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:24,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337485431] [2021-11-25 17:51:24,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:24,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:24,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:24,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:24,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:24,180 INFO L87 Difference]: Start difference. First operand 161178 states and 240536 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, (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) [2021-11-25 17:51:26,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:30,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []