./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-libertas-libertas.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW --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 02471c2dadff215655f9cac8e155a6dfd7f7fd622aa50515f4bca55da1c7d987 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:07:06,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:07:06,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:07:06,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:07:06,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:07:06,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:07:06,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:07:06,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:07:06,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:07:06,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:07:06,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:07:06,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:07:06,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:07:06,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:07:06,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:07:06,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:07:06,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:07:06,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:07:06,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:07:06,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:07:06,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:07:06,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:07:06,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:07:06,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:07:06,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:07:06,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:07:06,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:07:06,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:07:06,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:07:06,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:07:06,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:07:06,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:07:06,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:07:06,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:07:06,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:07:06,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:07:06,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:07:06,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:07:06,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:07:06,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:07:06,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:07:06,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:07:06,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:07:06,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:07:06,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:07:06,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:07:06,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:07:06,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:07:06,750 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:07:06,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:07:06,751 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:07:06,751 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:07:06,751 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:07:06,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:07:06,752 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:07:06,752 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:07:06,752 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:07:06,752 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:07:06,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:07:06,753 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:07:06,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:07:06,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:07:06,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:07:06,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:07:06,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:07:06,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:07:06,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:07:06,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:07:06,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:07:06,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:07:06,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:07:06,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:06,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:07:06,757 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:07:06,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:07:06,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:07:06,757 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:07:06,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:07:06,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:07:06,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:07:06,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02471c2dadff215655f9cac8e155a6dfd7f7fd622aa50515f4bca55da1c7d987 [2022-11-23 15:07:07,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:07:07,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:07:07,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:07:07,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:07:07,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:07:07,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2022-11-23 15:07:10,308 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:07:11,301 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:07:11,302 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2022-11-23 15:07:11,409 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/data/799aacf2c/72f3572a05f343cbbafb1e9b5a11c887/FLAG1ce1fe4f3 [2022-11-23 15:07:11,431 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/data/799aacf2c/72f3572a05f343cbbafb1e9b5a11c887 [2022-11-23 15:07:11,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:07:11,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:07:11,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:11,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:07:11,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:07:11,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:11" (1/1) ... [2022-11-23 15:07:11,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef7fdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:11, skipping insertion in model container [2022-11-23 15:07:11,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:11" (1/1) ... [2022-11-23 15:07:11,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:07:11,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:07:22,460 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906568,906581] [2022-11-23 15:07:22,465 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906737,906750] [2022-11-23 15:07:22,466 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906904,906917] [2022-11-23 15:07:22,466 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[907072,907085] [2022-11-23 15:07:22,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:22,613 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:07:23,868 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906568,906581] [2022-11-23 15:07:23,869 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906737,906750] [2022-11-23 15:07:23,870 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906904,906917] [2022-11-23 15:07:23,871 WARN L237 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_c5c5500d-4cc4-4032-85c2-a95549d16d32/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[907072,907085] [2022-11-23 15:07:23,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:24,815 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:07:24,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24 WrapperNode [2022-11-23 15:07:24,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:24,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:24,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:07:24,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:07:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:25,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:25,930 INFO L138 Inliner]: procedures = 898, calls = 11588, calls flagged for inlining = 524, calls inlined = 478, statements flattened = 23619 [2022-11-23 15:07:25,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:25,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:07:25,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:07:25,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:07:25,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:25,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:26,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:26,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:26,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:27,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:27,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:27,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:27,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:07:27,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:07:27,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:07:27,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:07:27,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (1/1) ... [2022-11-23 15:07:27,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:27,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:27,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:07:27,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c5500d-4cc4-4032-85c2-a95549d16d32/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:07:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2022-11-23 15:07:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2022-11-23 15:07:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2022-11-23 15:07:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2022-11-23 15:07:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-23 15:07:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-23 15:07:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-23 15:07:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2022-11-23 15:07:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2022-11-23 15:07:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:07:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:07:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2022-11-23 15:07:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2022-11-23 15:07:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2022-11-23 15:07:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2022-11-23 15:07:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-23 15:07:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-23 15:07:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:07:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:07:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-23 15:07:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-23 15:07:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2022-11-23 15:07:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2022-11-23 15:07:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2022-11-23 15:07:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2022-11-23 15:07:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 15:07:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:07:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:07:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-23 15:07:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-23 15:07:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2022-11-23 15:07:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2022-11-23 15:07:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2022-11-23 15:07:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2022-11-23 15:07:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2022-11-23 15:07:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2022-11-23 15:07:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-23 15:07:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-23 15:07:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:07:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:07:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_reg [2022-11-23 15:07:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_reg [2022-11-23 15:07:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2022-11-23 15:07:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2022-11-23 15:07:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2022-11-23 15:07:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2022-11-23 15:07:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2022-11-23 15:07:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2022-11-23 15:07:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_16_5 [2022-11-23 15:07:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_16_5 [2022-11-23 15:07:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2022-11-23 15:07:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2022-11-23 15:07:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2022-11-23 15:07:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2022-11-23 15:07:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2022-11-23 15:07:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2022-11-23 15:07:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2022-11-23 15:07:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2022-11-23 15:07:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2022-11-23 15:07:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2022-11-23 15:07:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-23 15:07:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-23 15:07:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2022-11-23 15:07:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2022-11-23 15:07:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:07:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:07:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:07:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2022-11-23 15:07:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lbs_exit_module_38_2 [2022-11-23 15:07:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:07:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:07:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2022-11-23 15:07:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2022-11-23 15:07:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 15:07:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 15:07:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2022-11-23 15:07:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2022-11-23 15:07:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-23 15:07:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-23 15:07:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:07:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:07:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:07:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:07:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:07:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:07:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:07:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-23 15:07:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-23 15:07:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 15:07:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 15:07:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 15:07:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 15:07:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:07:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2022-11-23 15:07:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2022-11-23 15:07:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:07:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:07:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:07:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:07:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:07:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2022-11-23 15:07:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2022-11-23 15:07:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:07:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-23 15:07:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-23 15:07:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_65 [2022-11-23 15:07:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_65 [2022-11-23 15:07:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 15:07:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 15:07:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2022-11-23 15:07:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2022-11-23 15:07:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2022-11-23 15:07:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2022-11-23 15:07:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:07:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:07:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:07:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:07:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_59 [2022-11-23 15:07:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_59 [2022-11-23 15:07:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2022-11-23 15:07:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2022-11-23 15:07:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 15:07:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 15:07:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:07:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:07:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2022-11-23 15:07:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2022-11-23 15:07:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:07:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:07:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:07:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-23 15:07:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-23 15:07:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_driver_lock_of_lbs_private [2022-11-23 15:07:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_driver_lock_of_lbs_private [2022-11-23 15:07:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:07:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:07:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:07:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:07:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 15:07:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 15:07:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_dummy [2022-11-23 15:07:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_dummy [2022-11-23 15:07:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:07:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:07:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2022-11-23 15:07:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2022-11-23 15:07:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:07:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:07:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2022-11-23 15:07:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2022-11-23 15:07:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 15:07:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 15:07:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 15:07:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 15:07:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:07:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:07:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:07:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_read [2022-11-23 15:07:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_read [2022-11-23 15:07:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:07:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_59 [2022-11-23 15:07:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_59 [2022-11-23 15:07:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:07:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:07:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:07:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:07:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_driver_lock_of_lbs_private [2022-11-23 15:07:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_driver_lock_of_lbs_private [2022-11-23 15:07:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:07:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:07:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2022-11-23 15:07:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2022-11-23 15:07:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:07:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:07:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2022-11-23 15:07:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2022-11-23 15:07:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2022-11-23 15:07:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2022-11-23 15:07:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-23 15:07:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-23 15:07:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2022-11-23 15:07:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2022-11-23 15:07:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:07:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:07:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-11-23 15:07:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2022-11-23 15:07:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:07:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:07:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:07:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2022-11-23 15:07:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2022-11-23 15:07:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2022-11-23 15:07:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2022-11-23 15:07:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2022-11-23 15:07:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2022-11-23 15:07:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:07:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:07:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-23 15:07:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-23 15:07:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2022-11-23 15:07:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2022-11-23 15:07:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2022-11-23 15:07:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2022-11-23 15:07:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-23 15:07:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-23 15:07:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-23 15:07:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:07:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:07:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2022-11-23 15:07:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2022-11-23 15:07:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 15:07:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 15:07:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:07:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:07:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 15:07:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 15:07:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_60 [2022-11-23 15:07:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_60 [2022-11-23 15:07:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-23 15:07:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-23 15:07:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2022-11-23 15:07:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2022-11-23 15:07:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-23 15:07:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-23 15:07:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_reg [2022-11-23 15:07:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_reg [2022-11-23 15:07:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:07:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:07:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:07:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:07:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:07:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-23 15:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2022-11-23 15:07:27,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2022-11-23 15:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 15:07:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 15:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-23 15:07:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-23 15:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_sleepparams_read [2022-11-23 15:07:27,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_sleepparams_read [2022-11-23 15:07:27,647 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:07:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:07:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2022-11-23 15:07:27,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2022-11-23 15:07:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 15:07:27,648 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 15:07:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:07:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:07:27,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:07:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-23 15:07:27,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-23 15:07:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2022-11-23 15:07:27,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2022-11-23 15:07:27,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:07:27,650 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2022-11-23 15:07:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2022-11-23 15:07:27,650 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-23 15:07:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-23 15:07:27,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:07:27,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:07:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 15:07:27,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 15:07:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 15:07:27,651 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 15:07:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-23 15:07:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-23 15:07:27,652 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2022-11-23 15:07:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2022-11-23 15:07:27,652 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-23 15:07:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-23 15:07:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2022-11-23 15:07:27,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2022-11-23 15:07:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:07:27,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:07:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:07:27,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:07:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2022-11-23 15:07:27,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2022-11-23 15:07:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 15:07:27,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 15:07:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 15:07:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 15:07:27,655 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2022-11-23 15:07:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2022-11-23 15:07:27,655 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-23 15:07:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-23 15:07:27,656 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-23 15:07:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-23 15:07:27,656 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2022-11-23 15:07:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2022-11-23 15:07:27,656 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2022-11-23 15:07:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2022-11-23 15:07:27,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:07:27,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:07:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:07:27,657 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 15:07:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 15:07:27,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:07:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:07:27,658 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2022-11-23 15:07:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2022-11-23 15:07:27,658 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2022-11-23 15:07:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2022-11-23 15:07:27,659 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-23 15:07:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-23 15:07:27,659 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2022-11-23 15:07:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2022-11-23 15:07:27,659 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2022-11-23 15:07:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2022-11-23 15:07:27,660 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:07:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:07:27,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-23 15:07:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-23 15:07:27,660 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2022-11-23 15:07:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2022-11-23 15:07:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2022-11-23 15:07:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2022-11-23 15:07:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:07:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:07:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_write [2022-11-23 15:07:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_write [2022-11-23 15:07:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2022-11-23 15:07:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2022-11-23 15:07:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:07:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-23 15:07:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-23 15:07:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2022-11-23 15:07:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2022-11-23 15:07:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_802_11_sleep_params [2022-11-23 15:07:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_802_11_sleep_params [2022-11-23 15:07:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:07:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:07:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2022-11-23 15:07:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2022-11-23 15:07:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___0 [2022-11-23 15:07:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___0 [2022-11-23 15:07:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-23 15:07:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-23 15:07:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___6 [2022-11-23 15:07:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___6 [2022-11-23 15:07:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-23 15:07:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-23 15:07:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___4 [2022-11-23 15:07:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___4 [2022-11-23 15:07:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:07:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:07:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-23 15:07:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-23 15:07:27,667 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2022-11-23 15:07:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2022-11-23 15:07:27,667 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2022-11-23 15:07:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2022-11-23 15:07:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:07:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:07:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-23 15:07:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-23 15:07:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2022-11-23 15:07:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2022-11-23 15:07:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2022-11-23 15:07:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2022-11-23 15:07:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:07:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:07:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-23 15:07:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-23 15:07:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2022-11-23 15:07:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2022-11-23 15:07:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2022-11-23 15:07:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2022-11-23 15:07:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2022-11-23 15:07:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2022-11-23 15:07:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 15:07:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 15:07:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_60 [2022-11-23 15:07:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_60 [2022-11-23 15:07:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 15:07:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 15:07:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2022-11-23 15:07:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2022-11-23 15:07:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_read [2022-11-23 15:07:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_read [2022-11-23 15:07:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:07:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:07:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 15:07:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 15:07:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2022-11-23 15:07:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2022-11-23 15:07:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2022-11-23 15:07:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2022-11-23 15:07:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 15:07:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 15:07:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2022-11-23 15:07:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2022-11-23 15:07:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2022-11-23 15:07:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2022-11-23 15:07:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-23 15:07:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-23 15:07:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2022-11-23 15:07:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2022-11-23 15:07:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:07:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:07:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:07:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-23 15:07:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-23 15:07:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-23 15:07:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-23 15:07:30,414 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:07:30,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:07:31,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:16:37,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:16:38,146 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:16:44,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:16:44,160 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-23 15:16:44,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:16:44 BoogieIcfgContainer [2022-11-23 15:16:44,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:16:44,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:16:44,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:16:44,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:16:44,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:11" (1/3) ... [2022-11-23 15:16:44,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ad40ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:16:44, skipping insertion in model container [2022-11-23 15:16:44,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:24" (2/3) ... [2022-11-23 15:16:44,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ad40ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:16:44, skipping insertion in model container [2022-11-23 15:16:44,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:16:44" (3/3) ... [2022-11-23 15:16:44,183 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2022-11-23 15:16:44,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:16:44,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 15:16:44,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:16:44,356 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dab1456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:16:44,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 15:16:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 5575 states, 3511 states have (on average 1.3497579037311307) internal successors, (4739), 3583 states have internal predecessors, (4739), 1871 states have call successors, (1871), 193 states have call predecessors, (1871), 192 states have return successors, (1864), 1852 states have call predecessors, (1864), 1864 states have call successors, (1864) [2022-11-23 15:16:44,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2022-11-23 15:16:44,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:44,503 INFO L195 NwaCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:16:44,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:16:44,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:44,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1325456716, now seen corresponding path program 1 times [2022-11-23 15:16:44,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:44,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9639481] [2022-11-23 15:16:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:44,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2022-11-23 15:16:49,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:49,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9639481] [2022-11-23 15:16:49,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9639481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:49,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:49,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:16:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452758481] [2022-11-23 15:16:49,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:49,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:16:49,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:49,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:16:49,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:16:49,879 INFO L87 Difference]: Start difference. First operand has 5575 states, 3511 states have (on average 1.3497579037311307) internal successors, (4739), 3583 states have internal predecessors, (4739), 1871 states have call successors, (1871), 193 states have call predecessors, (1871), 192 states have return successors, (1864), 1852 states have call predecessors, (1864), 1864 states have call successors, (1864) Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2022-11-23 15:16:52,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:16:57,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:17:01,029 INFO L93 Difference]: Finished difference Result 14709 states and 22797 transitions. [2022-11-23 15:17:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:17:01,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) Word has length 1521 [2022-11-23 15:17:01,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:17:01,105 INFO L225 Difference]: With dead ends: 14709 [2022-11-23 15:17:01,105 INFO L226 Difference]: Without dead ends: 9424 [2022-11-23 15:17:01,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:01,143 INFO L413 NwaCegarLoop]: 8992 mSDtfsCounter, 5916 mSDsluCounter, 7611 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 16603 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:17:01,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5917 Valid, 16603 Invalid, 1616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1603 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 15:17:01,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2022-11-23 15:17:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9420. [2022-11-23 15:17:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9420 states, 5954 states have (on average 1.351696338595902) internal successors, (8048), 6069 states have internal predecessors, (8048), 3129 states have call successors, (3129), 335 states have call predecessors, (3129), 334 states have return successors, (3126), 3112 states have call predecessors, (3126), 3125 states have call successors, (3126) [2022-11-23 15:17:01,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 14303 transitions. [2022-11-23 15:17:01,942 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 14303 transitions. Word has length 1521 [2022-11-23 15:17:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:17:01,946 INFO L495 AbstractCegarLoop]: Abstraction has 9420 states and 14303 transitions. [2022-11-23 15:17:01,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (155), 2 states have call predecessors, (155), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2022-11-23 15:17:01,946 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 14303 transitions. [2022-11-23 15:17:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1546 [2022-11-23 15:17:02,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:02,114 INFO L195 NwaCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:17:02,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:17:02,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:17:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:02,116 INFO L85 PathProgramCache]: Analyzing trace with hash 478683578, now seen corresponding path program 1 times [2022-11-23 15:17:02,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:17:02,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602774111] [2022-11-23 15:17:02,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:02,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:17:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:17:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2022-11-23 15:17:04,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:17:04,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602774111] [2022-11-23 15:17:04,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602774111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:17:04,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:17:04,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:17:04,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082129997] [2022-11-23 15:17:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:17:04,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:17:04,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:17:04,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:17:04,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:04,999 INFO L87 Difference]: Start difference. First operand 9420 states and 14303 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2022-11-23 15:17:07,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:08,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:12,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:17:18,134 INFO L93 Difference]: Finished difference Result 25955 states and 39425 transitions. [2022-11-23 15:17:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:17:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) Word has length 1545 [2022-11-23 15:17:18,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:17:18,266 INFO L225 Difference]: With dead ends: 25955 [2022-11-23 15:17:18,266 INFO L226 Difference]: Without dead ends: 16836 [2022-11-23 15:17:18,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:18,323 INFO L413 NwaCegarLoop]: 8894 mSDtfsCounter, 5665 mSDsluCounter, 7609 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 16503 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:17:18,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 16503 Invalid, 1608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1602 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-23 15:17:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16836 states. [2022-11-23 15:17:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16836 to 16811. [2022-11-23 15:17:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16811 states, 10624 states have (on average 1.3530685240963856) internal successors, (14375), 10821 states have internal predecessors, (14375), 5578 states have call successors, (5578), 607 states have call predecessors, (5578), 606 states have return successors, (5577), 5556 states have call predecessors, (5577), 5574 states have call successors, (5577) [2022-11-23 15:17:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16811 states to 16811 states and 25530 transitions. [2022-11-23 15:17:19,882 INFO L78 Accepts]: Start accepts. Automaton has 16811 states and 25530 transitions. Word has length 1545 [2022-11-23 15:17:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:17:19,887 INFO L495 AbstractCegarLoop]: Abstraction has 16811 states and 25530 transitions. [2022-11-23 15:17:19,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2022-11-23 15:17:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 16811 states and 25530 transitions. [2022-11-23 15:17:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1547 [2022-11-23 15:17:19,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:19,925 INFO L195 NwaCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:17:19,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:17:19,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:17:19,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1927129554, now seen corresponding path program 1 times [2022-11-23 15:17:19,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:17:19,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817485565] [2022-11-23 15:17:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:19,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:17:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:17:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2022-11-23 15:17:22,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:17:22,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817485565] [2022-11-23 15:17:22,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817485565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:17:22,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:17:22,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:17:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903221372] [2022-11-23 15:17:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:17:22,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:17:22,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:17:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:17:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:22,997 INFO L87 Difference]: Start difference. First operand 16811 states and 25530 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2022-11-23 15:17:24,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:26,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:30,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:17:37,376 INFO L93 Difference]: Finished difference Result 48686 states and 74017 transitions. [2022-11-23 15:17:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:17:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) Word has length 1546 [2022-11-23 15:17:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:17:37,555 INFO L225 Difference]: With dead ends: 48686 [2022-11-23 15:17:37,555 INFO L226 Difference]: Without dead ends: 32176 [2022-11-23 15:17:37,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:37,632 INFO L413 NwaCegarLoop]: 11063 mSDtfsCounter, 7885 mSDsluCounter, 7358 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7885 SdHoareTripleChecker+Valid, 18421 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:17:37,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7885 Valid, 18421 Invalid, 1751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1747 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-23 15:17:37,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32176 states. [2022-11-23 15:17:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32176 to 32130. [2022-11-23 15:17:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32130 states, 20334 states have (on average 1.3557096488639717) internal successors, (27567), 20697 states have internal predecessors, (27567), 10617 states have call successors, (10617), 1181 states have call predecessors, (10617), 1176 states have return successors, (10696), 10565 states have call predecessors, (10696), 10613 states have call successors, (10696) [2022-11-23 15:17:40,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32130 states to 32130 states and 48880 transitions. [2022-11-23 15:17:40,074 INFO L78 Accepts]: Start accepts. Automaton has 32130 states and 48880 transitions. Word has length 1546 [2022-11-23 15:17:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:17:40,076 INFO L495 AbstractCegarLoop]: Abstraction has 32130 states and 48880 transitions. [2022-11-23 15:17:40,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (154), 2 states have call predecessors, (154), 1 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2022-11-23 15:17:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 32130 states and 48880 transitions. [2022-11-23 15:17:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1555 [2022-11-23 15:17:40,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:17:40,112 INFO L195 NwaCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:17:40,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:17:40,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:17:40,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:17:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1704893187, now seen corresponding path program 1 times [2022-11-23 15:17:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:17:40,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583689840] [2022-11-23 15:17:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:17:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:17:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:17:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2022-11-23 15:17:43,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:17:43,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583689840] [2022-11-23 15:17:43,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583689840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:17:43,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:17:43,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:17:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553514488] [2022-11-23 15:17:43,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:17:43,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:17:43,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:17:43,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:17:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:43,305 INFO L87 Difference]: Start difference. First operand 32130 states and 48880 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (158), 2 states have call predecessors, (158), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2022-11-23 15:17:45,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:50,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:52,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:54,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:17:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:17:57,047 INFO L93 Difference]: Finished difference Result 78658 states and 119602 transitions. [2022-11-23 15:17:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:17:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (158), 2 states have call predecessors, (158), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) Word has length 1554 [2022-11-23 15:17:57,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:17:57,354 INFO L225 Difference]: With dead ends: 78658 [2022-11-23 15:17:57,354 INFO L226 Difference]: Without dead ends: 46829 [2022-11-23 15:17:57,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:17:57,497 INFO L413 NwaCegarLoop]: 8966 mSDtfsCounter, 5924 mSDsluCounter, 7621 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5925 SdHoareTripleChecker+Valid, 16587 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:17:57,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5925 Valid, 16587 Invalid, 1601 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1592 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-23 15:17:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46829 states. [2022-11-23 15:18:00,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46829 to 46796. [2022-11-23 15:18:00,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46796 states, 29611 states have (on average 1.3554422343048191) internal successors, (40136), 30140 states have internal predecessors, (40136), 15433 states have call successors, (15433), 1756 states have call predecessors, (15433), 1749 states have return successors, (15523), 15353 states have call predecessors, (15523), 15429 states have call successors, (15523) [2022-11-23 15:18:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46796 states to 46796 states and 71092 transitions. [2022-11-23 15:18:00,943 INFO L78 Accepts]: Start accepts. Automaton has 46796 states and 71092 transitions. Word has length 1554 [2022-11-23 15:18:00,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:00,945 INFO L495 AbstractCegarLoop]: Abstraction has 46796 states and 71092 transitions. [2022-11-23 15:18:00,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (158), 2 states have call predecessors, (158), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2022-11-23 15:18:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 46796 states and 71092 transitions. [2022-11-23 15:18:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2022-11-23 15:18:00,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:00,986 INFO L195 NwaCegarLoop]: trace histogram [153, 150, 150, 150, 150, 150, 150, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:00,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:18:00,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:18:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:00,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1552806958, now seen corresponding path program 1 times [2022-11-23 15:18:00,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:00,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441838155] [2022-11-23 15:18:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:00,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 90310 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 90306 trivial. 0 not checked. [2022-11-23 15:18:03,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441838155] [2022-11-23 15:18:03,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441838155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:03,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:03,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:18:03,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358146978] [2022-11-23 15:18:03,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:03,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:18:03,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:03,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:18:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:18:03,797 INFO L87 Difference]: Start difference. First operand 46796 states and 71092 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) [2022-11-23 15:18:06,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:18:07,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:18:26,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:18:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:50,577 INFO L93 Difference]: Finished difference Result 156967 states and 239348 transitions. [2022-11-23 15:18:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:18:50,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) Word has length 1561 [2022-11-23 15:18:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:51,592 INFO L225 Difference]: With dead ends: 156967 [2022-11-23 15:18:51,592 INFO L226 Difference]: Without dead ends: 110472 [2022-11-23 15:18:51,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:18:51,795 INFO L413 NwaCegarLoop]: 18416 mSDtfsCounter, 16353 mSDsluCounter, 18348 mSDsCounter, 0 mSdLazyCounter, 11471 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16357 SdHoareTripleChecker+Valid, 36764 SdHoareTripleChecker+Invalid, 11487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 11471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:51,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16357 Valid, 36764 Invalid, 11487 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 11471 Invalid, 1 Unknown, 0 Unchecked, 40.3s Time] [2022-11-23 15:18:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110472 states. [2022-11-23 15:18:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110472 to 110424. [2022-11-23 15:18:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110424 states, 69965 states have (on average 1.357107124991067) internal successors, (94950), 71230 states have internal predecessors, (94950), 36299 states have call successors, (36299), 4178 states have call predecessors, (36299), 4157 states have return successors, (36864), 36081 states have call predecessors, (36864), 36295 states have call successors, (36864) [2022-11-23 15:19:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110424 states to 110424 states and 168113 transitions. [2022-11-23 15:19:00,735 INFO L78 Accepts]: Start accepts. Automaton has 110424 states and 168113 transitions. Word has length 1561 [2022-11-23 15:19:00,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:19:00,737 INFO L495 AbstractCegarLoop]: Abstraction has 110424 states and 168113 transitions. [2022-11-23 15:19:00,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (158), 3 states have call predecessors, (158), 2 states have call successors, (158) [2022-11-23 15:19:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 110424 states and 168113 transitions. [2022-11-23 15:19:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2022-11-23 15:19:00,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:19:00,770 INFO L195 NwaCegarLoop]: trace histogram [151, 150, 150, 150, 150, 150, 150, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:19:00,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:19:00,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:19:00,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:19:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash -364252071, now seen corresponding path program 1 times [2022-11-23 15:19:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:19:00,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612680113] [2022-11-23 15:19:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:19:00,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:19:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:19:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 89700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89700 trivial. 0 not checked. [2022-11-23 15:19:04,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:19:04,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612680113] [2022-11-23 15:19:04,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612680113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:19:04,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:19:04,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:19:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537362361] [2022-11-23 15:19:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:19:04,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:19:04,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:19:04,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:19:04,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:19:04,106 INFO L87 Difference]: Start difference. First operand 110424 states and 168113 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (160), 2 states have call predecessors, (160), 1 states have return successors, (153), 3 states have call predecessors, (153), 3 states have call successors, (153) [2022-11-23 15:19:06,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:19:08,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:19:13,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []