./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur --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 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 --- 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-38b53e6 [2022-11-25 23:23:29,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:23:29,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:23:29,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:23:29,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:23:29,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:23:29,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:23:29,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:23:29,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:23:29,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:23:29,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:23:29,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:23:29,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:23:29,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:23:29,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:23:29,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:23:29,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:23:29,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:23:29,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:23:29,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:23:29,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:23:29,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:23:29,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:23:29,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:23:29,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:23:29,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:23:29,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:23:29,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:23:29,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:23:29,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:23:29,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:23:29,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:23:29,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:23:29,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:23:29,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:23:29,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:23:29,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:23:29,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:23:29,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:23:29,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:23:29,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:23:29,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:23:29,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:23:29,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:23:29,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:23:29,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:23:29,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:23:29,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:23:29,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:23:29,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:23:29,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:23:29,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:23:29,917 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:23:29,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:23:29,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:23:29,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:23:29,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:23:29,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:23:29,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:23:29,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:23:29,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:23:29,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:23:29,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:23:29,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:23:29,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:23:29,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:23:29,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:23:29,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:23:29,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:23:29,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:23:29,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:23:29,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:23:29,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:23:29,926 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:23:29,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:23:29,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:23:29,927 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:23:29,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:23:29,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:23:29,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:23:29,928 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_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 [2022-11-25 23:23:30,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:23:30,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:23:30,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:23:30,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:23:30,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:23:30,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-25 23:23:33,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:23:34,188 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:23:34,188 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-25 23:23:34,254 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/data/71faf4ea4/b855e65cfa1b4525a8ca2e04493fd639/FLAG6aa2b7b12 [2022-11-25 23:23:34,270 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/data/71faf4ea4/b855e65cfa1b4525a8ca2e04493fd639 [2022-11-25 23:23:34,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:23:34,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:23:34,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:34,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:23:34,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:23:34,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:34" (1/1) ... [2022-11-25 23:23:34,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c94b548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:34, skipping insertion in model container [2022-11-25 23:23:34,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:34" (1/1) ... [2022-11-25 23:23:34,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:23:34,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:23:35,218 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 23:23:35,375 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-11-25 23:23:35,411 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-11-25 23:23:35,483 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_is_singular [2022-11-25 23:23:35,772 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,773 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,777 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:35,809 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:35,810 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,811 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:35,812 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_primary_tuner [2022-11-25 23:23:35,812 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,814 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,821 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:35,860 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:23:35,869 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:23:35,878 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,879 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,880 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,881 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,881 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,883 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:35,883 WARN L623 FunctionHandler]: Unknown extern function si476x_core_cmd_fm_phase_diversity [2022-11-25 23:23:35,885 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:35,892 WARN L623 FunctionHandler]: Unknown extern function si476x_core_stop [2022-11-25 23:23:35,892 WARN L623 FunctionHandler]: Unknown extern function si476x_core_stop [2022-11-25 23:23:35,894 WARN L623 FunctionHandler]: Unknown extern function si476x_core_start [2022-11-25 23:23:35,922 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:35,923 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:35,944 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:35,946 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:35,947 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:35,950 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,952 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,955 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,960 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:35,975 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,978 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,979 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,980 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,984 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,984 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,985 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,986 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:35,986 WARN L623 FunctionHandler]: Unknown extern function regcache_cache_only [2022-11-25 23:23:35,987 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,988 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,989 WARN L623 FunctionHandler]: Unknown extern function si476x_core_cmd_fm_rds_status [2022-11-25 23:23:35,990 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,991 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:35,991 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:35,992 WARN L623 FunctionHandler]: Unknown extern function regcache_cache_only [2022-11-25 23:23:35,994 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:35,996 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:36,007 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:36,015 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:36,021 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_open [2022-11-25 23:23:36,021 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:36,026 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-11-25 23:23:36,026 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:36,027 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-11-25 23:23:36,033 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:36,033 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-11-25 23:23:36,054 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 23:23:36,056 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:23:36,057 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:23:36,068 WARN L623 FunctionHandler]: Unknown extern function __kfifo_to_user [2022-11-25 23:23:36,069 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:23:36,075 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-11-25 23:23:36,099 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:36,107 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:36,121 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:36,130 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:36,143 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:36,158 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-11-25 23:23:36,160 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:36,161 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:36,162 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:36,163 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:36,165 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:36,166 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 23:23:36,171 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_custom [2022-11-25 23:23:36,172 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,178 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_set_name [2022-11-25 23:23:36,179 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-11-25 23:23:36,180 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,181 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-11-25 23:23:36,182 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:36,182 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:23:36,183 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,185 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:23:36,186 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,186 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:23:36,187 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,187 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:36,188 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,189 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:36,189 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:23:36,195 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:23:36,195 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-11-25 23:23:36,195 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-11-25 23:23:36,196 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 23:23:36,838 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-11-25 23:23:36,839 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-11-25 23:23:36,876 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,877 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,878 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,879 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,879 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,880 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:36,881 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,881 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,882 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,894 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,895 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,896 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:36,899 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:36,900 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:36,901 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:36,901 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:36,902 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:36,903 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:36,904 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:36,904 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:36,905 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:36,906 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:36,910 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:23:37,029 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:23:37,029 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:23:37,070 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:23:37,070 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:23:37,079 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:23:37,302 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2022-11-25 23:23:37,306 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2022-11-25 23:23:37,307 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2022-11-25 23:23:37,307 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2022-11-25 23:23:37,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:37,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:23:37,528 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 23:23:37,532 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-11-25 23:23:37,537 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-11-25 23:23:37,538 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_is_singular [2022-11-25 23:23:37,567 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,568 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,569 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:37,574 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:37,574 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,575 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:37,575 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_primary_tuner [2022-11-25 23:23:37,575 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,576 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,577 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:23:37,580 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:23:37,582 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:23:37,583 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,584 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,584 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,585 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,585 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,585 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:37,586 WARN L623 FunctionHandler]: Unknown extern function si476x_core_cmd_fm_phase_diversity [2022-11-25 23:23:37,586 WARN L623 FunctionHandler]: Unknown extern function regcache_sync_region [2022-11-25 23:23:37,587 WARN L623 FunctionHandler]: Unknown extern function si476x_core_stop [2022-11-25 23:23:37,588 WARN L623 FunctionHandler]: Unknown extern function si476x_core_stop [2022-11-25 23:23:37,588 WARN L623 FunctionHandler]: Unknown extern function si476x_core_start [2022-11-25 23:23:37,592 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:37,592 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_a_secondary_tuner [2022-11-25 23:23:37,595 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:37,595 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:37,596 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:37,597 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,598 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,598 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,600 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:37,602 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,603 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,603 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,604 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,604 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,605 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,605 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,605 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:37,606 WARN L623 FunctionHandler]: Unknown extern function regcache_cache_only [2022-11-25 23:23:37,606 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,607 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,607 WARN L623 FunctionHandler]: Unknown extern function si476x_core_cmd_fm_rds_status [2022-11-25 23:23:37,608 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,608 WARN L623 FunctionHandler]: Unknown extern function regmap_update_bits [2022-11-25 23:23:37,608 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:37,609 WARN L623 FunctionHandler]: Unknown extern function regcache_cache_only [2022-11-25 23:23:37,609 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,610 WARN L623 FunctionHandler]: Unknown extern function si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:37,611 WARN L623 FunctionHandler]: Unknown extern function regmap_read [2022-11-25 23:23:37,612 WARN L623 FunctionHandler]: Unknown extern function regmap_write [2022-11-25 23:23:37,613 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_open [2022-11-25 23:23:37,613 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:37,614 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-11-25 23:23:37,614 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:37,615 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-11-25 23:23:37,616 WARN L623 FunctionHandler]: Unknown extern function si476x_core_set_power_state [2022-11-25 23:23:37,616 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-11-25 23:23:37,618 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 23:23:37,619 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:23:37,619 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:23:37,620 WARN L623 FunctionHandler]: Unknown extern function __kfifo_to_user [2022-11-25 23:23:37,621 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:23:37,622 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-11-25 23:23:37,627 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:37,628 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:37,630 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:37,686 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:37,688 WARN L623 FunctionHandler]: Unknown extern function simple_read_from_buffer [2022-11-25 23:23:37,689 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-11-25 23:23:37,690 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:37,690 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:37,691 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:37,691 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:37,692 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 23:23:37,693 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 23:23:37,693 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_custom [2022-11-25 23:23:37,694 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,695 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_set_name [2022-11-25 23:23:37,695 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-11-25 23:23:37,695 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,704 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-11-25 23:23:37,705 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_am [2022-11-25 23:23:37,705 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:23:37,706 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,706 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:23:37,707 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,707 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:23:37,707 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,708 WARN L623 FunctionHandler]: Unknown extern function si476x_core_has_diversity [2022-11-25 23:23:37,709 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,709 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:23:37,710 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:23:37,711 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:23:37,711 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-11-25 23:23:37,712 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-11-25 23:23:37,712 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 23:23:37,729 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-11-25 23:23:37,729 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-11-25 23:23:37,750 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,750 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,751 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,752 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,752 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,753 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:23:37,753 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,754 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,754 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,755 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,755 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,755 WARN L623 FunctionHandler]: Unknown extern function simple_open [2022-11-25 23:23:37,758 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:37,759 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:37,760 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:37,760 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:37,761 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:37,761 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:37,762 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:37,762 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:37,763 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:23:37,763 WARN L623 FunctionHandler]: Unknown extern function video_device_release_empty [2022-11-25 23:23:37,766 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:23:37,814 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:23:37,814 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:23:37,817 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:23:37,817 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:23:37,818 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:23:37,829 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2022-11-25 23:23:37,829 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2022-11-25 23:23:37,830 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2022-11-25 23:23:37,831 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_bc977a08-d650-44ce-afac-ec6257ca0846/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2022-11-25 23:23:37,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:38,048 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:23:38,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38 WrapperNode [2022-11-25 23:23:38,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:38,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:38,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:23:38,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:23:38,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,364 INFO L138 Inliner]: procedures = 413, calls = 2523, calls flagged for inlining = 243, calls inlined = 230, statements flattened = 7147 [2022-11-25 23:23:38,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:38,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:23:38,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:23:38,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:23:38,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,691 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:23:38,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:23:38,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:23:38,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:23:38,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (1/1) ... [2022-11-25 23:23:38,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:23:38,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:23:38,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:23:38,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc977a08-d650-44ce-afac-ec6257ca0846/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:23:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_diversity [2022-11-25 23:23:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_diversity [2022-11-25 23:23:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:23:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:23:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_acf_status [2022-11-25 23:23:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:23:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:23:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_ctrl [2022-11-25 23:23:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_ctrl [2022-11-25 23:23:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:23:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:23:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_probe [2022-11-25 23:23:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_probe [2022-11-25 23:23:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_acf_status [2022-11-25 23:23:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_div_status [2022-11-25 23:23:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:23:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:23:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-25 23:23:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-25 23:23:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:23:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:23:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_lock [2022-11-25 23:23:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_lock [2022-11-25 23:23:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:23:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:23:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 23:23:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 23:23:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_acf_blob [2022-11-25 23:23:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_acf_blob [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rsq_status [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-25 23:23:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:23:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:23:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:23:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_remove [2022-11-25 23:23:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_remove [2022-11-25 23:23:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:23:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:23:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:23:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:23:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:23:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-25 23:23:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-25 23:23:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_am [2022-11-25 23:23:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_am [2022-11-25 23:23:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_read [2022-11-25 23:23:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_read [2022-11-25 23:23:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-25 23:23:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-25 23:23:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_tuner [2022-11-25 23:23:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_tuner [2022-11-25 23:23:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_change_func [2022-11-25 23:23:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_change_func [2022-11-25 23:23:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_frequency [2022-11-25 23:23:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_frequency [2022-11-25 23:23:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:23:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 23:23:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 23:23:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 23:23:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 23:23:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 23:23:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 23:23:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-25 23:23:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-25 23:23:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-25 23:23:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-25 23:23:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-11-25 23:23:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-11-25 23:23:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:23:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_to_v4l2 [2022-11-25 23:23:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_to_v4l2 [2022-11-25 23:23:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_querycap [2022-11-25 23:23:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_querycap [2022-11-25 23:23:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:23:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:23:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:23:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:23:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:23:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:23:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:23:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_register [2022-11-25 23:23:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_register [2022-11-25 23:23:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2022-11-25 23:23:38,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2022-11-25 23:23:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_seek_start [2022-11-25 23:23:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_agc_status [2022-11-25 23:23:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_frequency [2022-11-25 23:23:38,838 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_frequency [2022-11-25 23:23:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-25 23:23:38,838 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-25 23:23:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_open [2022-11-25 23:23:38,839 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_open [2022-11-25 23:23:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:23:38,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:23:38,842 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_add_new_custom [2022-11-25 23:23:38,842 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_add_new_custom [2022-11-25 23:23:38,842 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:23:38,842 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:23:38,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:23:38,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:23:38,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:23:38,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:23:38,843 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_tune_freq [2022-11-25 23:23:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_read [2022-11-25 23:23:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_read [2022-11-25 23:23:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_in_am_receiver_mode [2022-11-25 23:23:38,850 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_to_radio [2022-11-25 23:23:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_to_radio [2022-11-25 23:23:38,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:23:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:23:38,850 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rds_blckcnt_blob [2022-11-25 23:23:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rds_blckcnt_blob [2022-11-25 23:23:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_update_bits [2022-11-25 23:23:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_update_bits [2022-11-25 23:23:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_enum_freq_bands [2022-11-25 23:23:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_enum_freq_bands [2022-11-25 23:23:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-25 23:23:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-25 23:23:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-25 23:23:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-25 23:23:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:23:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rds_blockcount [2022-11-25 23:23:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_register [2022-11-25 23:23:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_register [2022-11-25 23:23:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:23:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_diversity [2022-11-25 23:23:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_cmd_fm_phase_diversity [2022-11-25 23:23:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-25 23:23:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-25 23:23:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:23:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_to_si476x [2022-11-25 23:23:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_to_si476x [2022-11-25 23:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_do_post_powerup_init [2022-11-25 23:23:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_do_post_powerup_init [2022-11-25 23:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_write [2022-11-25 23:23:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_write [2022-11-25 23:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_seek_start [2022-11-25 23:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-25 23:23:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-25 23:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:23:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:23:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-25 23:23:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-11-25 23:23:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_blob [2022-11-25 23:23:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_blob [2022-11-25 23:23:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_range_is_inside_of_the_band [2022-11-25 23:23:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_range_is_inside_of_the_band [2022-11-25 23:23:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:23:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:23:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_set_power_state [2022-11-25 23:23:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_set_power_state [2022-11-25 23:23:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_cache_only [2022-11-25 23:23:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_cache_only [2022-11-25 23:23:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:23:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:23:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-25 23:23:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-25 23:23:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_release [2022-11-25 23:23:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_release [2022-11-25 23:23:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:23:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_hw_freq_seek [2022-11-25 23:23:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_hw_freq_seek [2022-11-25 23:23:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_primary_blob [2022-11-25 23:23:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_primary_blob [2022-11-25 23:23:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_agc_blob [2022-11-25 23:23:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_agc_blob [2022-11-25 23:23:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:23:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:23:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2022-11-25 23:23:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2022-11-25 23:23:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_tuner [2022-11-25 23:23:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_tuner [2022-11-25 23:23:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_stop [2022-11-25 23:23:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_stop [2022-11-25 23:23:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_poll [2022-11-25 23:23:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_poll [2022-11-25 23:23:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_tune_freq [2022-11-25 23:23:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2022-11-25 23:23:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2022-11-25 23:23:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_a_secondary_tuner [2022-11-25 23:23:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_a_secondary_tuner [2022-11-25 23:23:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-25 23:23:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-25 23:23:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 23:23:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 23:23:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2022-11-25 23:23:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2022-11-25 23:23:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:23:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:23:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_unlock [2022-11-25 23:23:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_unlock [2022-11-25 23:23:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2022-11-25 23:23:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2022-11-25 23:23:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:23:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:23:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2022-11-25 23:23:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2022-11-25 23:23:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_volatile_ctrl [2022-11-25 23:23:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_volatile_ctrl [2022-11-25 23:23:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:23:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_sync_region [2022-11-25 23:23:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_sync_region [2022-11-25 23:23:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_rsq_status [2022-11-25 23:23:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:23:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:23:40,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:23:40,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:23:40,417 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:23:46,731 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 23:23:46,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:23:48,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:23:48,397 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:23:48,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:48 BoogieIcfgContainer [2022-11-25 23:23:48,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:23:48,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:23:48,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:23:48,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:23:48,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:23:34" (1/3) ... [2022-11-25 23:23:48,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09f5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:48, skipping insertion in model container [2022-11-25 23:23:48,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:38" (2/3) ... [2022-11-25 23:23:48,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09f5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:48, skipping insertion in model container [2022-11-25 23:23:48,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:48" (3/3) ... [2022-11-25 23:23:48,417 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-25 23:23:48,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:23:48,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:23:48,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:23:48,575 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;@4093d024, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:23:48,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 23:23:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 2090 states, 1293 states have (on average 1.3549883990719258) internal successors, (1752), 1296 states have internal predecessors, (1752), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) [2022-11-25 23:23:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2022-11-25 23:23:48,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:48,664 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 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] [2022-11-25 23:23:48,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:23:48,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:48,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1053862128, now seen corresponding path program 1 times [2022-11-25 23:23:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:48,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960715960] [2022-11-25 23:23:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 19463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19463 trivial. 0 not checked. [2022-11-25 23:23:50,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:50,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960715960] [2022-11-25 23:23:50,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960715960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:50,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:50,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:23:50,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937727934] [2022-11-25 23:23:50,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:50,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:23:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:23:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:23:50,699 INFO L87 Difference]: Start difference. First operand has 2090 states, 1293 states have (on average 1.3549883990719258) internal successors, (1752), 1296 states have internal predecessors, (1752), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-25 23:23:53,421 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 [] [2022-11-25 23:23:55,434 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 [] [2022-11-25 23:23:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:56,698 INFO L93 Difference]: Finished difference Result 5893 states and 9122 transitions. [2022-11-25 23:23:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:23:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 724 [2022-11-25 23:23:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:56,754 INFO L225 Difference]: With dead ends: 5893 [2022-11-25 23:23:56,754 INFO L226 Difference]: Without dead ends: 3929 [2022-11-25 23:23:56,774 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 [2022-11-25 23:23:56,778 INFO L413 NwaCegarLoop]: 3300 mSDtfsCounter, 2836 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:56,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2838 Valid, 5962 Invalid, 905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 890 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 23:23:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2022-11-25 23:23:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3922. [2022-11-25 23:23:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 2458 states have (on average 1.3567941415785192) internal successors, (3335), 2463 states have internal predecessors, (3335), 1285 states have call successors, (1285), 177 states have call predecessors, (1285), 176 states have return successors, (1283), 1281 states have call predecessors, (1283), 1281 states have call successors, (1283) [2022-11-25 23:23:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5903 transitions. [2022-11-25 23:23:57,162 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5903 transitions. Word has length 724 [2022-11-25 23:23:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:57,164 INFO L495 AbstractCegarLoop]: Abstraction has 3922 states and 5903 transitions. [2022-11-25 23:23:57,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-25 23:23:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5903 transitions. [2022-11-25 23:23:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2022-11-25 23:23:57,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:57,234 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:57,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:23:57,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:23:57,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:57,235 INFO L85 PathProgramCache]: Analyzing trace with hash 733149271, now seen corresponding path program 1 times [2022-11-25 23:23:57,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:57,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103635350] [2022-11-25 23:23:57,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:57,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2022-11-25 23:23:58,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:58,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103635350] [2022-11-25 23:23:58,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103635350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:58,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:58,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:23:58,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36029492] [2022-11-25 23:23:58,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:58,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:23:58,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:23:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:23:58,391 INFO L87 Difference]: Start difference. First operand 3922 states and 5903 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-25 23:24:00,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:02,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:05,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:07,545 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 [] [2022-11-25 23:24:07,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:07,910 INFO L93 Difference]: Finished difference Result 9602 states and 14452 transitions. [2022-11-25 23:24:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 732 [2022-11-25 23:24:07,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:07,951 INFO L225 Difference]: With dead ends: 9602 [2022-11-25 23:24:07,952 INFO L226 Difference]: Without dead ends: 5821 [2022-11-25 23:24:07,965 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 [2022-11-25 23:24:07,967 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 2853 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 5969 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:07,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2853 Valid, 5969 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 873 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-11-25 23:24:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2022-11-25 23:24:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 5801. [2022-11-25 23:24:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 3642 states have (on average 1.3588687534321802) internal successors, (4949), 3652 states have internal predecessors, (4949), 1891 states have call successors, (1891), 266 states have call predecessors, (1891), 265 states have return successors, (1889), 1882 states have call predecessors, (1889), 1887 states have call successors, (1889) [2022-11-25 23:24:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 8729 transitions. [2022-11-25 23:24:08,332 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 8729 transitions. Word has length 732 [2022-11-25 23:24:08,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:08,336 INFO L495 AbstractCegarLoop]: Abstraction has 5801 states and 8729 transitions. [2022-11-25 23:24:08,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-25 23:24:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 8729 transitions. [2022-11-25 23:24:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2022-11-25 23:24:08,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:08,364 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:08,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:24:08,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash 252953113, now seen corresponding path program 1 times [2022-11-25 23:24:08,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:08,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735459819] [2022-11-25 23:24:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:08,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2022-11-25 23:24:09,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:09,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735459819] [2022-11-25 23:24:09,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735459819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:09,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:09,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:09,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889232747] [2022-11-25 23:24:09,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:09,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:09,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:09,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:09,262 INFO L87 Difference]: Start difference. First operand 5801 states and 8729 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-25 23:24:12,152 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 [] [2022-11-25 23:24:13,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:15,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:16,376 INFO L93 Difference]: Finished difference Result 16529 states and 24894 transitions. [2022-11-25 23:24:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 741 [2022-11-25 23:24:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:16,450 INFO L225 Difference]: With dead ends: 16529 [2022-11-25 23:24:16,451 INFO L226 Difference]: Without dead ends: 10869 [2022-11-25 23:24:16,484 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 [2022-11-25 23:24:16,488 INFO L413 NwaCegarLoop]: 3383 mSDtfsCounter, 2672 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2674 SdHoareTripleChecker+Valid, 6007 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:16,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2674 Valid, 6007 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 973 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 23:24:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-11-25 23:24:17,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 10845. [2022-11-25 23:24:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10845 states, 6792 states have (on average 1.3514428739693758) internal successors, (9179), 6816 states have internal predecessors, (9179), 3541 states have call successors, (3541), 510 states have call predecessors, (3541), 509 states have return successors, (3547), 3518 states have call predecessors, (3547), 3537 states have call successors, (3547) [2022-11-25 23:24:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10845 states to 10845 states and 16267 transitions. [2022-11-25 23:24:17,415 INFO L78 Accepts]: Start accepts. Automaton has 10845 states and 16267 transitions. Word has length 741 [2022-11-25 23:24:17,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:17,416 INFO L495 AbstractCegarLoop]: Abstraction has 10845 states and 16267 transitions. [2022-11-25 23:24:17,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-25 23:24:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 10845 states and 16267 transitions. [2022-11-25 23:24:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2022-11-25 23:24:17,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:17,441 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:17,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:24:17,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash 902358994, now seen corresponding path program 1 times [2022-11-25 23:24:17,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:17,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493693451] [2022-11-25 23:24:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:17,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-25 23:24:18,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:18,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493693451] [2022-11-25 23:24:18,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493693451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:18,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:18,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:18,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883380916] [2022-11-25 23:24:18,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:18,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:18,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:18,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:18,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:18,311 INFO L87 Difference]: Start difference. First operand 10845 states and 16267 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-25 23:24:21,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:23,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:25,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:26,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:27,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:27,422 INFO L93 Difference]: Finished difference Result 28484 states and 42679 transitions. [2022-11-25 23:24:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:27,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 751 [2022-11-25 23:24:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:27,540 INFO L225 Difference]: With dead ends: 28484 [2022-11-25 23:24:27,540 INFO L226 Difference]: Without dead ends: 17780 [2022-11-25 23:24:27,693 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 [2022-11-25 23:24:27,694 INFO L413 NwaCegarLoop]: 3489 mSDtfsCounter, 2780 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6146 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:27,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 6146 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 904 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 23:24:27,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17780 states. [2022-11-25 23:24:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17780 to 17750. [2022-11-25 23:24:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17750 states, 11092 states have (on average 1.3478182473855032) internal successors, (14950), 11144 states have internal predecessors, (14950), 5801 states have call successors, (5801), 855 states have call predecessors, (5801), 854 states have return successors, (5811), 5750 states have call predecessors, (5811), 5797 states have call successors, (5811) [2022-11-25 23:24:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17750 states to 17750 states and 26562 transitions. [2022-11-25 23:24:28,939 INFO L78 Accepts]: Start accepts. Automaton has 17750 states and 26562 transitions. Word has length 751 [2022-11-25 23:24:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:28,940 INFO L495 AbstractCegarLoop]: Abstraction has 17750 states and 26562 transitions. [2022-11-25 23:24:28,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-25 23:24:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 17750 states and 26562 transitions. [2022-11-25 23:24:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-11-25 23:24:28,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:28,954 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:28,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:24:28,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:28,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:28,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2113614225, now seen corresponding path program 1 times [2022-11-25 23:24:28,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:28,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062761763] [2022-11-25 23:24:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2022-11-25 23:24:29,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:29,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062761763] [2022-11-25 23:24:29,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062761763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:29,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:29,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:29,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739381976] [2022-11-25 23:24:29,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:29,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:29,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:29,590 INFO L87 Difference]: Start difference. First operand 17750 states and 26562 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-25 23:24:32,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:34,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:37,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:38,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:39,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:39,772 INFO L93 Difference]: Finished difference Result 49107 states and 73452 transitions. [2022-11-25 23:24:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:39,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 765 [2022-11-25 23:24:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:39,972 INFO L225 Difference]: With dead ends: 49107 [2022-11-25 23:24:39,972 INFO L226 Difference]: Without dead ends: 31498 [2022-11-25 23:24:40,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:40,052 INFO L413 NwaCegarLoop]: 3273 mSDtfsCounter, 2785 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:40,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 5925 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 894 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 23:24:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31498 states. [2022-11-25 23:24:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31498 to 31464. [2022-11-25 23:24:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31464 states, 19740 states have (on average 1.3479229989868289) internal successors, (26608), 19856 states have internal predecessors, (26608), 10169 states have call successors, (10169), 1553 states have call predecessors, (10169), 1552 states have return successors, (10189), 10054 states have call predecessors, (10189), 10165 states have call successors, (10189) [2022-11-25 23:24:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31464 states to 31464 states and 46966 transitions. [2022-11-25 23:24:42,351 INFO L78 Accepts]: Start accepts. Automaton has 31464 states and 46966 transitions. Word has length 765 [2022-11-25 23:24:42,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:42,353 INFO L495 AbstractCegarLoop]: Abstraction has 31464 states and 46966 transitions. [2022-11-25 23:24:42,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-25 23:24:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 31464 states and 46966 transitions. [2022-11-25 23:24:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2022-11-25 23:24:42,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:42,366 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:42,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:24:42,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 318663133, now seen corresponding path program 1 times [2022-11-25 23:24:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:42,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246857255] [2022-11-25 23:24:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:43,198 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2022-11-25 23:24:43,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:43,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246857255] [2022-11-25 23:24:43,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246857255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:43,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:43,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:43,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025155180] [2022-11-25 23:24:43,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:43,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:43,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:43,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:43,203 INFO L87 Difference]: Start difference. First operand 31464 states and 46966 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-25 23:24:47,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:49,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:51,697 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 [] [2022-11-25 23:24:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:53,139 INFO L93 Difference]: Finished difference Result 89915 states and 134170 transitions. [2022-11-25 23:24:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:53,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 766 [2022-11-25 23:24:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:53,605 INFO L225 Difference]: With dead ends: 89915 [2022-11-25 23:24:53,605 INFO L226 Difference]: Without dead ends: 58592 [2022-11-25 23:24:53,744 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 [2022-11-25 23:24:53,746 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 2783 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:53,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 5983 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 904 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-25 23:24:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58592 states. [2022-11-25 23:24:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58592 to 58558. [2022-11-25 23:24:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58558 states, 36870 states have (on average 1.347274206672091) internal successors, (49674), 37114 states have internal predecessors, (49674), 18737 states have call successors, (18737), 2949 states have call predecessors, (18737), 2948 states have return successors, (18789), 18494 states have call predecessors, (18789), 18733 states have call successors, (18789) [2022-11-25 23:24:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58558 states to 58558 states and 87200 transitions. [2022-11-25 23:24:57,982 INFO L78 Accepts]: Start accepts. Automaton has 58558 states and 87200 transitions. Word has length 766 [2022-11-25 23:24:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:57,983 INFO L495 AbstractCegarLoop]: Abstraction has 58558 states and 87200 transitions. [2022-11-25 23:24:57,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-25 23:24:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 58558 states and 87200 transitions. [2022-11-25 23:24:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-11-25 23:24:58,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:58,342 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:58,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:24:58,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1898388181, now seen corresponding path program 1 times [2022-11-25 23:24:58,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:58,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699796786] [2022-11-25 23:24:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:58,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-25 23:24:59,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:59,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699796786] [2022-11-25 23:24:59,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699796786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:59,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:59,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103471926] [2022-11-25 23:24:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:59,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:59,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:59,472 INFO L87 Difference]: Start difference. First operand 58558 states and 87200 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-25 23:25:03,279 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 [] [2022-11-25 23:25:04,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:07,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:10,773 INFO L93 Difference]: Finished difference Result 170665 states and 254048 transitions. [2022-11-25 23:25:10,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:25:10,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 760 [2022-11-25 23:25:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:11,498 INFO L225 Difference]: With dead ends: 170665 [2022-11-25 23:25:11,498 INFO L226 Difference]: Without dead ends: 112248 [2022-11-25 23:25:11,706 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 [2022-11-25 23:25:11,707 INFO L413 NwaCegarLoop]: 3338 mSDtfsCounter, 2787 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2789 SdHoareTripleChecker+Valid, 5992 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:11,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2789 Valid, 5992 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 897 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-25 23:25:11,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112248 states. [2022-11-25 23:25:17,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112248 to 112166. [2022-11-25 23:25:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112166 states, 70840 states have (on average 1.3460474308300394) internal successors, (95354), 71388 states have internal predecessors, (95354), 35583 states have call successors, (35583), 5741 states have call predecessors, (35583), 5740 states have return successors, (35699), 35036 states have call predecessors, (35699), 35579 states have call successors, (35699) [2022-11-25 23:25:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112166 states to 112166 states and 166636 transitions. [2022-11-25 23:25:18,926 INFO L78 Accepts]: Start accepts. Automaton has 112166 states and 166636 transitions. Word has length 760 [2022-11-25 23:25:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:18,927 INFO L495 AbstractCegarLoop]: Abstraction has 112166 states and 166636 transitions. [2022-11-25 23:25:18,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-25 23:25:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 112166 states and 166636 transitions. [2022-11-25 23:25:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-11-25 23:25:18,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:18,951 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:18,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:25:18,951 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash 103049982, now seen corresponding path program 1 times [2022-11-25 23:25:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:18,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330652061] [2022-11-25 23:25:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:18,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-25 23:25:20,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330652061] [2022-11-25 23:25:20,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330652061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:20,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:20,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:25:20,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373708223] [2022-11-25 23:25:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:20,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:25:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:25:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:25:20,820 INFO L87 Difference]: Start difference. First operand 112166 states and 166636 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-25 23:25:28,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:30,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []