./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh --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 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- 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-2329fc7 [2022-12-14 09:05:00,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:05:00,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:05:00,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:05:00,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:05:00,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:05:00,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:05:00,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:05:00,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:05:00,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:05:00,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:05:00,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:05:00,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:05:00,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:05:00,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:05:00,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:05:00,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:05:00,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:05:00,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:05:00,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:05:00,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:05:00,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:05:00,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:05:00,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:05:00,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:05:00,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:05:00,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:05:00,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:05:00,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:05:00,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:05:00,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:05:00,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:05:00,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:05:00,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:05:00,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:05:00,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:05:00,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:05:00,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:05:00,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:05:00,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:05:00,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:05:00,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:05:00,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:05:00,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:05:00,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:05:00,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:05:00,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:05:00,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:05:00,917 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:05:00,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:05:00,918 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:05:00,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:05:00,918 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:05:00,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:05:00,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:05:00,919 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:05:00,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:05:00,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:05:00,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:05:00,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:05:00,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:05:00,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:05:00,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:05:00,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:05:00,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:05:00,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:05:00,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:05:00,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:05:00,922 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:05:00,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:05:00,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:05:00,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:05:00,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:05:00,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:05:00,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:05:00,923 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2022-12-14 09:05:01,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:05:01,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:05:01,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:05:01,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:05:01,109 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:05:01,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-12-14 09:05:03,675 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:05:04,128 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:05:04,128 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-12-14 09:05:04,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/data/39882440e/9606c9abe2a548659980a4ed89f7f445/FLAGe93321be4 [2022-12-14 09:05:04,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/data/39882440e/9606c9abe2a548659980a4ed89f7f445 [2022-12-14 09:05:04,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:05:04,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:05:04,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:05:04,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:05:04,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:05:04,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:05:04" (1/1) ... [2022-12-14 09:05:04,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8642f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:04, skipping insertion in model container [2022-12-14 09:05:04,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:05:04" (1/1) ... [2022-12-14 09:05:04,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:05:04,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:05:05,047 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:05:05,060 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:05:05,123 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:05,123 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 09:05:05,253 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 09:05:05,278 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 09:05:05,285 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 09:05:05,566 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 09:05:05,568 WARN L623 FunctionHandler]: Unknown extern function is_bad_inode [2022-12-14 09:05:05,599 WARN L623 FunctionHandler]: Unknown extern function dget_parent [2022-12-14 09:05:05,603 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:05,623 WARN L623 FunctionHandler]: Unknown extern function lockref_get_not_dead [2022-12-14 09:05:05,623 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:05,624 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:05,625 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:05,625 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:05,626 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:05,626 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:05,628 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:05,628 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:05,629 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:05,629 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:05,638 WARN L623 FunctionHandler]: Unknown extern function d_hash_and_lookup [2022-12-14 09:05:05,639 WARN L623 FunctionHandler]: Unknown extern function d_alloc [2022-12-14 09:05:05,640 WARN L623 FunctionHandler]: Unknown extern function shrink_dcache_parent [2022-12-14 09:05:05,640 WARN L623 FunctionHandler]: Unknown extern function dentry_update_name_case [2022-12-14 09:05:05,640 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:05,641 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:05,641 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 09:05:05,642 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:05,642 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:05,644 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:05,644 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:05,650 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:05,656 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:05,662 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:05,663 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:05,846 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-12-14 09:05:05,957 WARN L623 FunctionHandler]: Unknown extern function touch_atime [2022-12-14 09:05:05,985 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:05,985 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 09:05:05,986 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 09:05:05,986 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 09:05:06,033 WARN L623 FunctionHandler]: Unknown extern function filemap_write_and_wait_range [2022-12-14 09:05:06,034 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:06,046 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,055 WARN L623 FunctionHandler]: Unknown extern function file_update_time [2022-12-14 09:05:06,057 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,134 WARN L623 FunctionHandler]: Unknown extern function generic_file_llseek [2022-12-14 09:05:06,136 WARN L623 FunctionHandler]: Unknown extern function generic_file_llseek [2022-12-14 09:05:06,301 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:06,473 WARN L623 FunctionHandler]: Unknown extern function __mark_inode_dirty [2022-12-14 09:05:06,548 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-12-14 09:05:06,789 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-12-14 09:05:06,800 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:06,800 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-12-14 09:05:06,806 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-12-14 09:05:06,811 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-12-14 09:05:06,816 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-12-14 09:05:06,844 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 09:05:06,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:06,846 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-12-14 09:05:06,848 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 09:05:06,848 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-12-14 09:05:06,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:06,849 WARN L623 FunctionHandler]: Unknown extern function truncate_inode_pages_final [2022-12-14 09:05:06,849 WARN L623 FunctionHandler]: Unknown extern function clear_inode [2022-12-14 09:05:06,849 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:06,856 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:06,857 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:06,857 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:06,858 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:06,858 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,859 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-12-14 09:05:06,860 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,861 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:06,861 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,861 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,862 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,862 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,863 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,863 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,864 WARN L623 FunctionHandler]: Unknown extern function pid_vnr [2022-12-14 09:05:06,864 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:06,875 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,876 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,877 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,877 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:06,878 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,878 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,879 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:06,880 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:06,888 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,888 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,888 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:06,888 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,888 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,889 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,889 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:06,889 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,890 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,890 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:06,890 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,891 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:06,891 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:06,891 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:06,892 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:05:06,893 WARN L623 FunctionHandler]: Unknown extern function sockfd_lookup [2022-12-14 09:05:06,894 WARN L623 FunctionHandler]: Unknown extern function bdi_setup_and_register [2022-12-14 09:05:06,894 WARN L623 FunctionHandler]: Unknown extern function sockfd_lookup [2022-12-14 09:05:06,895 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:06,896 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:06,896 WARN L623 FunctionHandler]: Unknown extern function __init_rwsem [2022-12-14 09:05:06,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:06,898 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:06,899 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:06,899 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:06,899 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:05:06,902 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:06,902 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:06,903 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:06,903 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:06,904 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:06,904 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:06,904 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:06,904 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:06,916 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-12-14 09:05:06,917 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,917 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,917 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,918 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:06,918 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:06,918 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,918 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,918 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,919 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:06,919 WARN L623 FunctionHandler]: Unknown extern function bdi_destroy [2022-12-14 09:05:06,919 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:06,920 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:06,920 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:06,927 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:06,927 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:06,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:06,928 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,928 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,928 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:06,929 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:06,929 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:06,929 WARN L623 FunctionHandler]: Unknown extern function kill_pid [2022-12-14 09:05:06,930 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:06,930 WARN L623 FunctionHandler]: Unknown extern function bdi_destroy [2022-12-14 09:05:06,930 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:06,930 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:06,930 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,931 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,931 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:06,935 WARN L623 FunctionHandler]: Unknown extern function inode_change_ok [2022-12-14 09:05:06,939 WARN L623 FunctionHandler]: Unknown extern function setattr_copy [2022-12-14 09:05:06,940 WARN L623 FunctionHandler]: Unknown extern function truncate_setsize [2022-12-14 09:05:06,941 WARN L623 FunctionHandler]: Unknown extern function setattr_copy [2022-12-14 09:05:06,948 WARN L623 FunctionHandler]: Unknown extern function mount_nodev [2022-12-14 09:05:07,205 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-12-14 09:05:07,205 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-12-14 09:05:07,206 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-12-14 09:05:07,206 WARN L623 FunctionHandler]: Unknown extern function kill_anon_super [2022-12-14 09:05:07,208 WARN L623 FunctionHandler]: Unknown extern function generic_delete_inode [2022-12-14 09:05:07,227 WARN L623 FunctionHandler]: Unknown extern function lock_sock_nested [2022-12-14 09:05:07,227 WARN L623 FunctionHandler]: Unknown extern function release_sock [2022-12-14 09:05:07,228 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:05:07,229 WARN L623 FunctionHandler]: Unknown extern function release_sock [2022-12-14 09:05:07,229 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-12-14 09:05:07,229 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-12-14 09:05:07,310 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:07,412 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,412 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 09:05:07,412 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 09:05:07,412 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 09:05:07,465 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,466 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,472 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,472 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,479 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,479 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,486 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:07,487 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:07,487 WARN L623 FunctionHandler]: Unknown extern function load_nls [2022-12-14 09:05:07,487 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:07,488 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:07,488 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:07,488 WARN L623 FunctionHandler]: Unknown extern function load_nls [2022-12-14 09:05:07,489 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:07,489 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:07,489 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:07,496 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 09:05:07,497 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 09:05:07,505 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:07,506 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:07,507 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,507 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,507 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,507 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,508 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,508 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,508 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,508 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,509 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,509 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:07,509 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,512 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,512 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:07,514 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:07,514 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:07,515 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:07,515 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:07,516 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 09:05:07,516 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-12-14 09:05:07,517 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-12-14 09:05:07,517 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:07,517 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:07,517 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:07,518 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:07,519 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 09:05:07,519 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-12-14 09:05:07,519 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-12-14 09:05:07,519 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:07,521 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:07,522 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:05:07,523 WARN L623 FunctionHandler]: Unknown extern function mnt_want_write_file [2022-12-14 09:05:07,523 WARN L623 FunctionHandler]: Unknown extern function inode_permission [2022-12-14 09:05:07,523 WARN L623 FunctionHandler]: Unknown extern function inode_permission [2022-12-14 09:05:07,523 WARN L623 FunctionHandler]: Unknown extern function mnt_drop_write_file [2022-12-14 09:05:07,542 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:07,542 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:07,543 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:07,543 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:07,543 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 09:05:07,566 WARN L623 FunctionHandler]: Unknown extern function __mem_cgroup_count_vm_event [2022-12-14 09:05:07,724 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:07,731 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:07,737 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:07,743 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:07,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:07,889 WARN L623 FunctionHandler]: Unknown extern function utf8_to_utf32 [2022-12-14 09:05:07,902 WARN L623 FunctionHandler]: Unknown extern function utf32_to_utf8 [2022-12-14 09:05:07,904 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:07,905 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:05:07,989 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 09:05:08,004 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 09:05:08,015 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:08,098 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:05:08,173 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:05:08,234 WARN L623 FunctionHandler]: Unknown extern function kernel_recvmsg [2022-12-14 09:05:08,240 WARN L623 FunctionHandler]: Unknown extern function kernel_sendmsg [2022-12-14 09:05:08,252 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 09:05:08,264 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:08,271 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 09:05:08,313 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,353 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,386 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,397 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,397 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,406 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 09:05:08,406 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:05:08,407 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 09:05:08,407 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:05:08,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,416 WARN L623 FunctionHandler]: Unknown extern function recalc_sigpending [2022-12-14 09:05:08,416 WARN L623 FunctionHandler]: Unknown extern function recalc_sigpending [2022-12-14 09:05:08,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,431 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 09:05:08,431 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer [2022-12-14 09:05:08,432 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:08,432 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:08,432 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:08,433 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:08,433 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 09:05:08,433 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer [2022-12-14 09:05:08,434 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:08,434 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:08,434 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:08,435 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:08,475 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:05:08,486 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 09:05:08,498 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:05:08,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:08,520 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:08,520 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:08,520 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:08,521 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:08,523 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:08,523 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:09,125 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:05:09,438 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:05:10,193 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-12-14 09:05:10,195 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-12-14 09:05:10,196 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-12-14 09:05:10,196 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-12-14 09:05:10,196 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-12-14 09:05:10,197 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-12-14 09:05:10,197 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-12-14 09:05:10,197 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-12-14 09:05:10,197 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-12-14 09:05:10,198 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-12-14 09:05:10,198 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-12-14 09:05:10,198 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-12-14 09:05:10,198 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-12-14 09:05:10,198 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-12-14 09:05:10,199 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-12-14 09:05:10,199 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-12-14 09:05:10,199 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-12-14 09:05:10,199 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-12-14 09:05:10,200 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-12-14 09:05:10,200 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-12-14 09:05:10,200 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-12-14 09:05:10,200 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-12-14 09:05:10,201 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-12-14 09:05:10,201 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-12-14 09:05:10,201 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-12-14 09:05:10,201 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-12-14 09:05:10,201 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-12-14 09:05:10,202 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-12-14 09:05:10,202 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-12-14 09:05:10,202 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-12-14 09:05:10,202 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-12-14 09:05:10,203 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-12-14 09:05:10,203 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-12-14 09:05:10,203 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-12-14 09:05:10,203 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-12-14 09:05:10,203 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-12-14 09:05:10,204 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-12-14 09:05:10,204 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-12-14 09:05:10,204 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-12-14 09:05:10,204 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-12-14 09:05:10,205 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-12-14 09:05:10,205 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-12-14 09:05:10,205 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-12-14 09:05:10,205 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-12-14 09:05:10,205 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-12-14 09:05:10,206 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-12-14 09:05:10,206 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-12-14 09:05:10,206 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-12-14 09:05:10,206 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-12-14 09:05:10,207 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-12-14 09:05:10,207 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-12-14 09:05:10,207 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-12-14 09:05:10,207 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-12-14 09:05:10,207 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-12-14 09:05:10,208 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-12-14 09:05:10,208 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-12-14 09:05:10,208 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-12-14 09:05:10,208 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-12-14 09:05:10,208 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-12-14 09:05:10,209 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-12-14 09:05:10,209 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-12-14 09:05:10,209 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-12-14 09:05:10,209 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-12-14 09:05:10,210 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-12-14 09:05:10,210 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-12-14 09:05:10,210 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-12-14 09:05:10,210 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-12-14 09:05:10,210 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-12-14 09:05:10,211 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-12-14 09:05:10,211 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-12-14 09:05:10,211 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-12-14 09:05:10,211 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-12-14 09:05:10,212 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-12-14 09:05:10,212 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-12-14 09:05:10,212 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-12-14 09:05:10,212 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-12-14 09:05:10,212 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-12-14 09:05:10,213 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-12-14 09:05:10,213 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-12-14 09:05:10,213 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-12-14 09:05:10,213 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-12-14 09:05:10,214 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-12-14 09:05:10,214 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-12-14 09:05:10,214 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-12-14 09:05:10,214 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-12-14 09:05:10,214 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-12-14 09:05:10,215 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-12-14 09:05:10,215 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-12-14 09:05:10,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:05:10,257 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:05:10,334 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:05:10,335 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:05:10,336 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:10,336 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 09:05:10,339 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 09:05:10,340 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 09:05:10,340 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 09:05:10,351 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 09:05:10,353 WARN L623 FunctionHandler]: Unknown extern function is_bad_inode [2022-12-14 09:05:10,367 WARN L623 FunctionHandler]: Unknown extern function dget_parent [2022-12-14 09:05:10,371 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:10,379 WARN L623 FunctionHandler]: Unknown extern function lockref_get_not_dead [2022-12-14 09:05:10,379 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:10,379 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:10,380 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,380 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:10,380 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,380 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:10,381 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,381 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:10,382 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,382 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:10,393 WARN L623 FunctionHandler]: Unknown extern function d_hash_and_lookup [2022-12-14 09:05:10,393 WARN L623 FunctionHandler]: Unknown extern function d_alloc [2022-12-14 09:05:10,393 WARN L623 FunctionHandler]: Unknown extern function shrink_dcache_parent [2022-12-14 09:05:10,393 WARN L623 FunctionHandler]: Unknown extern function dentry_update_name_case [2022-12-14 09:05:10,394 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:10,395 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:10,395 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 09:05:10,396 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,396 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:05:10,397 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 09:05:10,397 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:10,403 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,408 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:10,409 WARN L623 FunctionHandler]: Unknown extern function iunique [2022-12-14 09:05:10,411 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 09:05:10,435 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-12-14 09:05:10,436 WARN L623 FunctionHandler]: Unknown extern function touch_atime [2022-12-14 09:05:10,436 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,436 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 09:05:10,437 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 09:05:10,437 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 09:05:10,437 WARN L623 FunctionHandler]: Unknown extern function filemap_write_and_wait_range [2022-12-14 09:05:10,438 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,445 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,457 WARN L623 FunctionHandler]: Unknown extern function file_update_time [2022-12-14 09:05:10,460 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,464 WARN L623 FunctionHandler]: Unknown extern function generic_file_llseek [2022-12-14 09:05:10,465 WARN L623 FunctionHandler]: Unknown extern function generic_file_llseek [2022-12-14 09:05:10,467 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,470 WARN L623 FunctionHandler]: Unknown extern function __mark_inode_dirty [2022-12-14 09:05:10,471 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-12-14 09:05:10,473 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-12-14 09:05:10,473 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:10,473 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-12-14 09:05:10,474 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-12-14 09:05:10,474 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-12-14 09:05:10,474 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-12-14 09:05:10,483 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 09:05:10,484 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,484 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-12-14 09:05:10,490 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 09:05:10,491 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-12-14 09:05:10,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,492 WARN L623 FunctionHandler]: Unknown extern function truncate_inode_pages_final [2022-12-14 09:05:10,492 WARN L623 FunctionHandler]: Unknown extern function clear_inode [2022-12-14 09:05:10,492 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,499 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:10,500 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:10,500 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:05:10,503 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,503 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,504 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-12-14 09:05:10,504 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,504 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,505 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,505 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,506 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,506 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,506 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,506 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,507 WARN L623 FunctionHandler]: Unknown extern function pid_vnr [2022-12-14 09:05:10,507 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 09:05:10,511 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,511 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,512 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,512 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:10,512 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,512 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,513 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:10,514 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:10,516 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,516 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,517 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:10,517 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,517 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,517 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,518 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:10,518 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,518 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,519 WARN L623 FunctionHandler]: Unknown extern function find_get_pid [2022-12-14 09:05:10,519 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,519 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 09:05:10,519 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,520 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 09:05:10,520 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:05:10,521 WARN L623 FunctionHandler]: Unknown extern function sockfd_lookup [2022-12-14 09:05:10,523 WARN L623 FunctionHandler]: Unknown extern function bdi_setup_and_register [2022-12-14 09:05:10,524 WARN L623 FunctionHandler]: Unknown extern function sockfd_lookup [2022-12-14 09:05:10,525 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:10,525 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:10,525 WARN L623 FunctionHandler]: Unknown extern function __init_rwsem [2022-12-14 09:05:10,527 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,527 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,528 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,528 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:05:10,528 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:05:10,542 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:10,542 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:10,543 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:10,543 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:10,547 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:10,548 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:10,548 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:05:10,548 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:05:10,555 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-12-14 09:05:10,555 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,555 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,556 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,557 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:10,557 WARN L623 FunctionHandler]: Unknown extern function bdi_destroy [2022-12-14 09:05:10,557 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:10,557 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:10,557 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,559 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,559 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,559 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,560 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,560 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,560 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 09:05:10,560 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function fput [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function kill_pid [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function put_pid [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function bdi_destroy [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,561 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,562 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,562 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,562 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,586 WARN L623 FunctionHandler]: Unknown extern function inode_change_ok [2022-12-14 09:05:10,589 WARN L623 FunctionHandler]: Unknown extern function setattr_copy [2022-12-14 09:05:10,591 WARN L623 FunctionHandler]: Unknown extern function truncate_setsize [2022-12-14 09:05:10,594 WARN L623 FunctionHandler]: Unknown extern function setattr_copy [2022-12-14 09:05:10,595 WARN L623 FunctionHandler]: Unknown extern function mount_nodev [2022-12-14 09:05:10,600 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-12-14 09:05:10,600 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-12-14 09:05:10,600 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-12-14 09:05:10,600 WARN L623 FunctionHandler]: Unknown extern function kill_anon_super [2022-12-14 09:05:10,601 WARN L623 FunctionHandler]: Unknown extern function generic_delete_inode [2022-12-14 09:05:10,610 WARN L623 FunctionHandler]: Unknown extern function lock_sock_nested [2022-12-14 09:05:10,610 WARN L623 FunctionHandler]: Unknown extern function release_sock [2022-12-14 09:05:10,610 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:05:10,611 WARN L623 FunctionHandler]: Unknown extern function release_sock [2022-12-14 09:05:10,611 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-12-14 09:05:10,612 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-12-14 09:05:10,613 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,613 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,614 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 09:05:10,614 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 09:05:10,614 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 09:05:10,615 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,615 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,616 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,617 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,618 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,618 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,620 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,620 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,620 WARN L623 FunctionHandler]: Unknown extern function load_nls [2022-12-14 09:05:10,621 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,621 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,622 WARN L623 FunctionHandler]: Unknown extern function load_nls_default [2022-12-14 09:05:10,622 WARN L623 FunctionHandler]: Unknown extern function load_nls [2022-12-14 09:05:10,622 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,623 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,623 WARN L623 FunctionHandler]: Unknown extern function unload_nls [2022-12-14 09:05:10,624 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 09:05:10,625 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 09:05:10,631 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,632 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 09:05:10,634 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,634 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,635 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,635 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,635 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,636 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,636 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,636 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,636 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,636 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 09:05:10,637 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,640 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,640 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 09:05:10,642 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:10,643 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:10,643 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:10,644 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:10,644 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 09:05:10,645 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-12-14 09:05:10,645 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-12-14 09:05:10,645 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,645 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,646 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 09:05:10,646 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 09:05:10,647 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 09:05:10,647 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-12-14 09:05:10,647 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-12-14 09:05:10,647 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,650 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 09:05:10,651 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:05:10,652 WARN L623 FunctionHandler]: Unknown extern function mnt_want_write_file [2022-12-14 09:05:10,652 WARN L623 FunctionHandler]: Unknown extern function inode_permission [2022-12-14 09:05:10,652 WARN L623 FunctionHandler]: Unknown extern function inode_permission [2022-12-14 09:05:10,652 WARN L623 FunctionHandler]: Unknown extern function mnt_drop_write_file [2022-12-14 09:05:10,654 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,654 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,654 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,654 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,654 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 09:05:10,655 WARN L623 FunctionHandler]: Unknown extern function __mem_cgroup_count_vm_event [2022-12-14 09:05:10,661 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:10,662 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:10,662 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:10,663 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-12-14 09:05:10,670 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,691 WARN L623 FunctionHandler]: Unknown extern function utf8_to_utf32 [2022-12-14 09:05:10,694 WARN L623 FunctionHandler]: Unknown extern function utf32_to_utf8 [2022-12-14 09:05:10,696 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,696 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:05:10,696 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 09:05:10,697 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 09:05:10,697 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 09:05:10,697 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:05:10,698 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:05:10,699 WARN L623 FunctionHandler]: Unknown extern function kernel_recvmsg [2022-12-14 09:05:10,700 WARN L623 FunctionHandler]: Unknown extern function kernel_sendmsg [2022-12-14 09:05:10,700 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 09:05:10,701 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,710 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 09:05:10,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,727 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,728 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 09:05:10,729 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:05:10,729 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 09:05:10,729 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:05:10,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,731 WARN L623 FunctionHandler]: Unknown extern function recalc_sigpending [2022-12-14 09:05:10,731 WARN L623 FunctionHandler]: Unknown extern function recalc_sigpending [2022-12-14 09:05:10,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,733 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 09:05:10,733 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer [2022-12-14 09:05:10,734 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:10,734 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:10,734 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:10,734 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:10,734 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 09:05:10,735 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer [2022-12-14 09:05:10,735 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 09:05:10,735 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-12-14 09:05:10,735 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:10,735 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:10,740 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:05:10,740 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 09:05:10,741 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:05:10,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:05:10,746 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,746 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,746 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,746 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 09:05:10,752 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,753 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:05:10,761 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:05:10,766 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:05:10,791 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-12-14 09:05:10,791 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-12-14 09:05:10,792 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-12-14 09:05:10,792 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-12-14 09:05:10,792 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-12-14 09:05:10,793 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-12-14 09:05:10,793 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-12-14 09:05:10,793 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-12-14 09:05:10,794 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-12-14 09:05:10,794 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-12-14 09:05:10,794 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-12-14 09:05:10,794 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-12-14 09:05:10,795 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-12-14 09:05:10,795 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-12-14 09:05:10,795 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-12-14 09:05:10,796 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-12-14 09:05:10,796 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-12-14 09:05:10,796 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-12-14 09:05:10,796 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-12-14 09:05:10,797 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-12-14 09:05:10,797 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-12-14 09:05:10,797 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-12-14 09:05:10,797 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-12-14 09:05:10,798 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-12-14 09:05:10,798 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-12-14 09:05:10,798 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-12-14 09:05:10,799 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-12-14 09:05:10,799 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-12-14 09:05:10,799 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-12-14 09:05:10,799 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-12-14 09:05:10,800 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-12-14 09:05:10,800 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-12-14 09:05:10,800 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-12-14 09:05:10,800 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-12-14 09:05:10,801 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-12-14 09:05:10,801 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-12-14 09:05:10,801 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-12-14 09:05:10,802 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-12-14 09:05:10,802 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-12-14 09:05:10,802 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-12-14 09:05:10,802 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-12-14 09:05:10,803 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-12-14 09:05:10,803 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-12-14 09:05:10,803 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-12-14 09:05:10,803 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-12-14 09:05:10,804 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-12-14 09:05:10,804 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-12-14 09:05:10,804 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-12-14 09:05:10,805 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-12-14 09:05:10,805 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-12-14 09:05:10,805 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-12-14 09:05:10,805 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-12-14 09:05:10,806 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-12-14 09:05:10,806 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-12-14 09:05:10,806 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-12-14 09:05:10,806 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-12-14 09:05:10,807 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-12-14 09:05:10,807 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-12-14 09:05:10,807 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-12-14 09:05:10,808 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-12-14 09:05:10,808 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-12-14 09:05:10,808 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-12-14 09:05:10,808 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-12-14 09:05:10,809 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-12-14 09:05:10,809 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-12-14 09:05:10,809 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-12-14 09:05:10,809 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-12-14 09:05:10,810 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-12-14 09:05:10,810 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-12-14 09:05:10,810 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-12-14 09:05:10,811 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-12-14 09:05:10,811 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-12-14 09:05:10,811 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-12-14 09:05:10,811 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-12-14 09:05:10,812 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-12-14 09:05:10,812 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-12-14 09:05:10,812 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-12-14 09:05:10,812 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-12-14 09:05:10,813 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-12-14 09:05:10,813 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-12-14 09:05:10,813 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-12-14 09:05:10,814 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-12-14 09:05:10,814 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-12-14 09:05:10,814 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-12-14 09:05:10,814 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-12-14 09:05:10,815 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-12-14 09:05:10,815 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-12-14 09:05:10,815 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_3efc4edf-3875-49de-bf5c-032ce6b73e86/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-12-14 09:05:10,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:05:11,160 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:05:11,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11 WrapperNode [2022-12-14 09:05:11,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:05:11,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:05:11,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:05:11,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:05:11,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,427 INFO L138 Inliner]: procedures = 981, calls = 6465, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 12997 [2022-12-14 09:05:11,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:05:11,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:05:11,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:05:11,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:05:11,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:05:11,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:05:11,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:05:11,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:05:11,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (1/1) ... [2022-12-14 09:05:11,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:05:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:05:11,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:05:11,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 09:05:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2022-12-14 09:05:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2022-12-14 09:05:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2022-12-14 09:05:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 09:05:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 09:05:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2022-12-14 09:05:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2022-12-14 09:05:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:05:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-12-14 09:05:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 09:05:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-12-14 09:05:11,970 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2022-12-14 09:05:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2022-12-14 09:05:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-12-14 09:05:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-12-14 09:05:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2022-12-14 09:05:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2022-12-14 09:05:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-12-14 09:05:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-12-14 09:05:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2022-12-14 09:05:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2022-12-14 09:05:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2022-12-14 09:05:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2022-12-14 09:05:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2022-12-14 09:05:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-12-14 09:05:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:05:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2022-12-14 09:05:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2022-12-14 09:05:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-12-14 09:05:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2022-12-14 09:05:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2022-12-14 09:05:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 09:05:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 09:05:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2022-12-14 09:05:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2022-12-14 09:05:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-12-14 09:05:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-12-14 09:05:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 09:05:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 09:05:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 09:05:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2022-12-14 09:05:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2022-12-14 09:05:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2022-12-14 09:05:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 09:05:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 09:05:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2022-12-14 09:05:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2022-12-14 09:05:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2022-12-14 09:05:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2022-12-14 09:05:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-12-14 09:05:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2022-12-14 09:05:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 09:05:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 09:05:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2022-12-14 09:05:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2022-12-14 09:05:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 09:05:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-12-14 09:05:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2022-12-14 09:05:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2022-12-14 09:05:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 09:05:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 09:05:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:05:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-12-14 09:05:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-12-14 09:05:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-12-14 09:05:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2022-12-14 09:05:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2022-12-14 09:05:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-12-14 09:05:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-12-14 09:05:12,926 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:05:12,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:05:13,071 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:05:21,652 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:05:23,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:05:23,373 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-12-14 09:05:23,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:05:23 BoogieIcfgContainer [2022-12-14 09:05:23,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:05:23,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:05:23,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:05:23,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:05:23,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:05:04" (1/3) ... [2022-12-14 09:05:23,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:05:23, skipping insertion in model container [2022-12-14 09:05:23,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:11" (2/3) ... [2022-12-14 09:05:23,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:05:23, skipping insertion in model container [2022-12-14 09:05:23,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:05:23" (3/3) ... [2022-12-14 09:05:23,384 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-12-14 09:05:23,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:05:23,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-12-14 09:05:23,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:05:23,480 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;@31298ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:05:23,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-12-14 09:05:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) [2022-12-14 09:05:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:05:23,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:23,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:23,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:23,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:23,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1836160122, now seen corresponding path program 1 times [2022-12-14 09:05:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:23,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353533502] [2022-12-14 09:05:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:23,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 09:05:24,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:24,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353533502] [2022-12-14 09:05:24,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353533502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:24,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:24,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:24,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903213082] [2022-12-14 09:05:24,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:24,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:24,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:24,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:24,204 INFO L87 Difference]: Start difference. First operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:29,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:29,180 INFO L93 Difference]: Finished difference Result 7111 states and 10670 transitions. [2022-12-14 09:05:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-12-14 09:05:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:29,209 INFO L225 Difference]: With dead ends: 7111 [2022-12-14 09:05:29,209 INFO L226 Difference]: Without dead ends: 3534 [2022-12-14 09:05:29,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:29,231 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 5082 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9212 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:29,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9212 Invalid, 949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:05:29,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2022-12-14 09:05:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3532. [2022-12-14 09:05:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2019 states have (on average 1.283308568598316) internal successors, (2591), 2094 states have internal predecessors, (2591), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:29,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5063 transitions. [2022-12-14 09:05:29,478 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5063 transitions. Word has length 35 [2022-12-14 09:05:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:29,478 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 5063 transitions. [2022-12-14 09:05:29,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5063 transitions. [2022-12-14 09:05:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 09:05:29,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:29,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:29,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:05:29,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -672178058, now seen corresponding path program 1 times [2022-12-14 09:05:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:29,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944002331] [2022-12-14 09:05:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 09:05:29,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:29,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944002331] [2022-12-14 09:05:29,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944002331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:29,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:29,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:29,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664795004] [2022-12-14 09:05:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:29,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:29,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:29,768 INFO L87 Difference]: Start difference. First operand 3532 states and 5063 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:35,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:35,056 INFO L93 Difference]: Finished difference Result 3534 states and 5066 transitions. [2022-12-14 09:05:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:35,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-12-14 09:05:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:35,073 INFO L225 Difference]: With dead ends: 3534 [2022-12-14 09:05:35,074 INFO L226 Difference]: Without dead ends: 3532 [2022-12-14 09:05:35,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:35,077 INFO L413 NwaCegarLoop]: 4585 mSDtfsCounter, 5049 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:35,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 9165 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 945 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 09:05:35,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2022-12-14 09:05:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3530. [2022-12-14 09:05:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2018 states have (on average 1.2829534192269574) internal successors, (2589), 2092 states have internal predecessors, (2589), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5061 transitions. [2022-12-14 09:05:35,214 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5061 transitions. Word has length 37 [2022-12-14 09:05:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:35,214 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5061 transitions. [2022-12-14 09:05:35,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5061 transitions. [2022-12-14 09:05:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 09:05:35,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:35,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:35,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:05:35,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1708384902, now seen corresponding path program 1 times [2022-12-14 09:05:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614777137] [2022-12-14 09:05:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 09:05:35,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:35,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614777137] [2022-12-14 09:05:35,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614777137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:35,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:35,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453195688] [2022-12-14 09:05:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:35,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:35,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:35,592 INFO L87 Difference]: Start difference. First operand 3530 states and 5061 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:40,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:40,495 INFO L93 Difference]: Finished difference Result 3532 states and 5064 transitions. [2022-12-14 09:05:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:40,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-12-14 09:05:40,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:40,513 INFO L225 Difference]: With dead ends: 3532 [2022-12-14 09:05:40,513 INFO L226 Difference]: Without dead ends: 3530 [2022-12-14 09:05:40,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:40,516 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 5041 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 9164 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:40,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 9164 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 946 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 09:05:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2022-12-14 09:05:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3528. [2022-12-14 09:05:40,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2017 states have (on average 1.282597917699554) internal successors, (2587), 2090 states have internal predecessors, (2587), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:40,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5059 transitions. [2022-12-14 09:05:40,659 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5059 transitions. Word has length 39 [2022-12-14 09:05:40,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:40,659 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 5059 transitions. [2022-12-14 09:05:40,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5059 transitions. [2022-12-14 09:05:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 09:05:40,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:40,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:40,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:05:40,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:40,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1070498109, now seen corresponding path program 1 times [2022-12-14 09:05:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:40,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300296607] [2022-12-14 09:05:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:40,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 09:05:40,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:40,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300296607] [2022-12-14 09:05:40,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300296607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:40,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:40,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25497995] [2022-12-14 09:05:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:40,885 INFO L87 Difference]: Start difference. First operand 3528 states and 5059 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:45,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:45,692 INFO L93 Difference]: Finished difference Result 3530 states and 5062 transitions. [2022-12-14 09:05:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:45,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-12-14 09:05:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:45,704 INFO L225 Difference]: With dead ends: 3530 [2022-12-14 09:05:45,704 INFO L226 Difference]: Without dead ends: 3528 [2022-12-14 09:05:45,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:45,707 INFO L413 NwaCegarLoop]: 4581 mSDtfsCounter, 5033 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:45,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 9163 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:05:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-12-14 09:05:45,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526. [2022-12-14 09:05:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2016 states have (on average 1.2822420634920635) internal successors, (2585), 2088 states have internal predecessors, (2585), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5057 transitions. [2022-12-14 09:05:45,886 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5057 transitions. Word has length 41 [2022-12-14 09:05:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:45,887 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5057 transitions. [2022-12-14 09:05:45,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 09:05:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5057 transitions. [2022-12-14 09:05:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 09:05:45,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:45,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:05:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:05:45,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1169983675, now seen corresponding path program 1 times [2022-12-14 09:05:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072201766] [2022-12-14 09:05:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:05:46,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:46,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072201766] [2022-12-14 09:05:46,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072201766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:46,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:46,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:46,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773439569] [2022-12-14 09:05:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:46,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:46,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:46,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:46,117 INFO L87 Difference]: Start difference. First operand 3526 states and 5057 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 09:05:51,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:51,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:51,416 INFO L93 Difference]: Finished difference Result 3528 states and 5060 transitions. [2022-12-14 09:05:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:51,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-12-14 09:05:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:51,426 INFO L225 Difference]: With dead ends: 3528 [2022-12-14 09:05:51,427 INFO L226 Difference]: Without dead ends: 3526 [2022-12-14 09:05:51,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:51,428 INFO L413 NwaCegarLoop]: 4579 mSDtfsCounter, 5035 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 9159 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:51,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 9159 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 09:05:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-12-14 09:05:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3524. [2022-12-14 09:05:51,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2015 states have (on average 1.2818858560794044) internal successors, (2583), 2086 states have internal predecessors, (2583), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 5055 transitions. [2022-12-14 09:05:51,566 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 5055 transitions. Word has length 49 [2022-12-14 09:05:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:51,567 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 5055 transitions. [2022-12-14 09:05:51,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 09:05:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 5055 transitions. [2022-12-14 09:05:51,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 09:05:51,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:51,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:05:51,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:05:51,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1893128420, now seen corresponding path program 1 times [2022-12-14 09:05:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:51,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887938024] [2022-12-14 09:05:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:51,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:05:51,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:51,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887938024] [2022-12-14 09:05:51,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887938024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:51,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:51,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:51,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682680334] [2022-12-14 09:05:51,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:51,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:51,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:51,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:51,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:51,772 INFO L87 Difference]: Start difference. First operand 3524 states and 5055 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 09:05:56,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:58,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:58,321 INFO L93 Difference]: Finished difference Result 3524 states and 5055 transitions. [2022-12-14 09:05:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-12-14 09:05:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:58,331 INFO L225 Difference]: With dead ends: 3524 [2022-12-14 09:05:58,332 INFO L226 Difference]: Without dead ends: 3522 [2022-12-14 09:05:58,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:58,333 INFO L413 NwaCegarLoop]: 4577 mSDtfsCounter, 5033 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 9154 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:58,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 9154 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 09:05:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-12-14 09:05:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2022-12-14 09:05:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2014 states have (on average 1.2815292949354518) internal successors, (2581), 2084 states have internal predecessors, (2581), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:05:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 5053 transitions. [2022-12-14 09:05:58,588 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 5053 transitions. Word has length 54 [2022-12-14 09:05:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:58,588 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 5053 transitions. [2022-12-14 09:05:58,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 09:05:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 5053 transitions. [2022-12-14 09:05:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 09:05:58,589 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:58,589 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:05:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:05:58,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:05:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:58,590 INFO L85 PathProgramCache]: Analyzing trace with hash -175025630, now seen corresponding path program 1 times [2022-12-14 09:05:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:58,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984044786] [2022-12-14 09:05:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:05:58,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:58,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984044786] [2022-12-14 09:05:58,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984044786] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:58,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:58,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:58,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815754669] [2022-12-14 09:05:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:58,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:58,787 INFO L87 Difference]: Start difference. First operand 3522 states and 5053 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:03,757 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 [] [2022-12-14 09:06:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:03,786 INFO L93 Difference]: Finished difference Result 3524 states and 5056 transitions. [2022-12-14 09:06:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:06:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2022-12-14 09:06:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:03,796 INFO L225 Difference]: With dead ends: 3524 [2022-12-14 09:06:03,796 INFO L226 Difference]: Without dead ends: 3522 [2022-12-14 09:06:03,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:03,797 INFO L413 NwaCegarLoop]: 4575 mSDtfsCounter, 5029 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9151 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:03,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9151 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 09:06:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-12-14 09:06:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3520. [2022-12-14 09:06:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2013 states have (on average 1.2811723795330352) internal successors, (2579), 2082 states have internal predecessors, (2579), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:06:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 5051 transitions. [2022-12-14 09:06:03,942 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 5051 transitions. Word has length 59 [2022-12-14 09:06:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:03,943 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 5051 transitions. [2022-12-14 09:06:03,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 5051 transitions. [2022-12-14 09:06:03,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 09:06:03,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:03,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:06:03,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:06:03,944 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:03,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1968954317, now seen corresponding path program 1 times [2022-12-14 09:06:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162268744] [2022-12-14 09:06:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:06:04,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162268744] [2022-12-14 09:06:04,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162268744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:04,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:04,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:06:04,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337975321] [2022-12-14 09:06:04,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:04,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:06:04,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:04,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:06:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:06:04,139 INFO L87 Difference]: Start difference. First operand 3520 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:06:09,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:09,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:09,160 INFO L93 Difference]: Finished difference Result 3522 states and 5054 transitions. [2022-12-14 09:06:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:06:09,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 09:06:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:09,170 INFO L225 Difference]: With dead ends: 3522 [2022-12-14 09:06:09,170 INFO L226 Difference]: Without dead ends: 3520 [2022-12-14 09:06:09,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:09,172 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 5026 mSDsluCounter, 4574 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:09,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 9147 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:06:09,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2022-12-14 09:06:09,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3518. [2022-12-14 09:06:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 2012 states have (on average 1.2808151093439364) internal successors, (2577), 2080 states have internal predecessors, (2577), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-12-14 09:06:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 5049 transitions. [2022-12-14 09:06:09,324 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 5049 transitions. Word has length 64 [2022-12-14 09:06:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:09,324 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 5049 transitions. [2022-12-14 09:06:09,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:06:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 5049 transitions. [2022-12-14 09:06:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 09:06:09,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:09,326 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:06:09,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:06:09,326 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1004698360, now seen corresponding path program 1 times [2022-12-14 09:06:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:09,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907280462] [2022-12-14 09:06:09,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:06:09,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:09,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907280462] [2022-12-14 09:06:09,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907280462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:09,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:09,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:09,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009652681] [2022-12-14 09:06:09,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:09,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:09,853 INFO L87 Difference]: Start difference. First operand 3518 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:18,470 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 [] [2022-12-14 09:06:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:18,552 INFO L93 Difference]: Finished difference Result 6233 states and 9147 transitions. [2022-12-14 09:06:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:06:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-12-14 09:06:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:18,577 INFO L225 Difference]: With dead ends: 6233 [2022-12-14 09:06:18,577 INFO L226 Difference]: Without dead ends: 6231 [2022-12-14 09:06:18,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:06:18,581 INFO L413 NwaCegarLoop]: 6079 mSDtfsCounter, 3959 mSDsluCounter, 16839 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 22918 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:18,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 22918 Invalid, 2129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2125 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 09:06:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6231 states. [2022-12-14 09:06:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6231 to 6054. [2022-12-14 09:06:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2946453602467058) internal successors, (4618), 3665 states have internal predecessors, (4618), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 413 states have return successors, (2293), 2024 states have call predecessors, (2293), 2046 states have call successors, (2293) [2022-12-14 09:06:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8959 transitions. [2022-12-14 09:06:18,926 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8959 transitions. Word has length 67 [2022-12-14 09:06:18,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:18,926 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8959 transitions. [2022-12-14 09:06:18,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:18,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8959 transitions. [2022-12-14 09:06:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 09:06:18,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:18,928 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:06:18,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:06:18,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:18,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:18,928 INFO L85 PathProgramCache]: Analyzing trace with hash 32602041, now seen corresponding path program 1 times [2022-12-14 09:06:18,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:18,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378544936] [2022-12-14 09:06:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:18,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:06:19,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:19,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378544936] [2022-12-14 09:06:19,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378544936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:19,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:19,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:06:19,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607579116] [2022-12-14 09:06:19,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:19,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:06:19,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:06:19,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:06:19,143 INFO L87 Difference]: Start difference. First operand 6054 states and 8959 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:06:23,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:23,872 INFO L93 Difference]: Finished difference Result 6056 states and 8962 transitions. [2022-12-14 09:06:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:06:23,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 69 [2022-12-14 09:06:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:23,893 INFO L225 Difference]: With dead ends: 6056 [2022-12-14 09:06:23,894 INFO L226 Difference]: Without dead ends: 6054 [2022-12-14 09:06:23,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:23,897 INFO L413 NwaCegarLoop]: 4571 mSDtfsCounter, 5023 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:23,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5027 Valid, 9143 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 09:06:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2022-12-14 09:06:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 6054. [2022-12-14 09:06:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2943650126156434) internal successors, (4617), 3665 states have internal predecessors, (4617), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 414 states have return successors, (2295), 2024 states have call predecessors, (2295), 2046 states have call successors, (2295) [2022-12-14 09:06:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8960 transitions. [2022-12-14 09:06:24,279 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8960 transitions. Word has length 69 [2022-12-14 09:06:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8960 transitions. [2022-12-14 09:06:24,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:06:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8960 transitions. [2022-12-14 09:06:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 09:06:24,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:24,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:06:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:06:24,281 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1313592129, now seen corresponding path program 1 times [2022-12-14 09:06:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:24,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510309324] [2022-12-14 09:06:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:06:24,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510309324] [2022-12-14 09:06:24,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510309324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:24,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:24,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:24,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11179422] [2022-12-14 09:06:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:24,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:24,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:24,856 INFO L87 Difference]: Start difference. First operand 6054 states and 8960 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:34,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:36,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:36,500 INFO L93 Difference]: Finished difference Result 6707 states and 9770 transitions. [2022-12-14 09:06:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:06:36,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2022-12-14 09:06:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:36,520 INFO L225 Difference]: With dead ends: 6707 [2022-12-14 09:06:36,520 INFO L226 Difference]: Without dead ends: 6705 [2022-12-14 09:06:36,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:06:36,524 INFO L413 NwaCegarLoop]: 5020 mSDtfsCounter, 4925 mSDsluCounter, 10742 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 15762 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:36,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 15762 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1662 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 09:06:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-12-14 09:06:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6693. [2022-12-14 09:06:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3911 states have (on average 1.281513679365891) internal successors, (5012), 4015 states have internal predecessors, (5012), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 509 states have return successors, (2501), 2220 states have call predecessors, (2501), 2246 states have call successors, (2501) [2022-12-14 09:06:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9761 transitions. [2022-12-14 09:06:36,907 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9761 transitions. Word has length 70 [2022-12-14 09:06:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:36,907 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9761 transitions. [2022-12-14 09:06:36,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9761 transitions. [2022-12-14 09:06:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 09:06:36,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:36,908 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:06:36,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:06:36,908 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:36,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash 272644562, now seen corresponding path program 1 times [2022-12-14 09:06:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:36,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150036873] [2022-12-14 09:06:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:06:37,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:37,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150036873] [2022-12-14 09:06:37,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150036873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:37,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:37,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:37,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889513899] [2022-12-14 09:06:37,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:37,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:37,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:37,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:37,471 INFO L87 Difference]: Start difference. First operand 6693 states and 9761 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:45,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:45,749 INFO L93 Difference]: Finished difference Result 14359 states and 21211 transitions. [2022-12-14 09:06:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:06:45,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-12-14 09:06:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:45,774 INFO L225 Difference]: With dead ends: 14359 [2022-12-14 09:06:45,774 INFO L226 Difference]: Without dead ends: 7672 [2022-12-14 09:06:45,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:45,797 INFO L413 NwaCegarLoop]: 4815 mSDtfsCounter, 379 mSDsluCounter, 13947 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 18762 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:45,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 18762 Invalid, 2160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2159 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 09:06:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2022-12-14 09:06:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6697. [2022-12-14 09:06:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 3914 states have (on average 1.2812979049565663) internal successors, (5015), 4018 states have internal predecessors, (5015), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:06:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9782 transitions. [2022-12-14 09:06:46,240 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9782 transitions. Word has length 67 [2022-12-14 09:06:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:46,240 INFO L495 AbstractCegarLoop]: Abstraction has 6697 states and 9782 transitions. [2022-12-14 09:06:46,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:06:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9782 transitions. [2022-12-14 09:06:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 09:06:46,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:46,241 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:06:46,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:06:46,241 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1672445646, now seen corresponding path program 1 times [2022-12-14 09:06:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:46,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728046187] [2022-12-14 09:06:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:46,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:06:46,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:46,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728046187] [2022-12-14 09:06:46,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728046187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:46,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:46,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:06:46,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725549657] [2022-12-14 09:06:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:46,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:06:46,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:06:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:06:46,433 INFO L87 Difference]: Start difference. First operand 6697 states and 9782 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:06:51,416 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 [] [2022-12-14 09:06:51,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:51,461 INFO L93 Difference]: Finished difference Result 6697 states and 9782 transitions. [2022-12-14 09:06:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:06:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-12-14 09:06:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:51,482 INFO L225 Difference]: With dead ends: 6697 [2022-12-14 09:06:51,482 INFO L226 Difference]: Without dead ends: 6695 [2022-12-14 09:06:51,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:51,486 INFO L413 NwaCegarLoop]: 4569 mSDtfsCounter, 5020 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 9139 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:51,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 9139 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:06:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2022-12-14 09:06:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6695. [2022-12-14 09:06:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3913 states have (on average 1.2811142346026068) internal successors, (5013), 4016 states have internal predecessors, (5013), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:06:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 9780 transitions. [2022-12-14 09:06:51,974 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 9780 transitions. Word has length 74 [2022-12-14 09:06:51,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:51,975 INFO L495 AbstractCegarLoop]: Abstraction has 6695 states and 9780 transitions. [2022-12-14 09:06:51,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:06:51,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 9780 transitions. [2022-12-14 09:06:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 09:06:51,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:51,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:06:51,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:06:51,976 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:51,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2077981928, now seen corresponding path program 1 times [2022-12-14 09:06:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:51,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285950719] [2022-12-14 09:06:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:51,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:06:52,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:52,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285950719] [2022-12-14 09:06:52,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285950719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:52,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:52,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:06:52,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993344781] [2022-12-14 09:06:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:52,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:06:52,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:06:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:06:52,164 INFO L87 Difference]: Start difference. First operand 6695 states and 9780 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 09:06:56,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:58,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:58,890 INFO L93 Difference]: Finished difference Result 6695 states and 9780 transitions. [2022-12-14 09:06:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:06:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 79 [2022-12-14 09:06:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:58,910 INFO L225 Difference]: With dead ends: 6695 [2022-12-14 09:06:58,910 INFO L226 Difference]: Without dead ends: 6693 [2022-12-14 09:06:58,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:58,914 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 5018 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 9134 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:58,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 9134 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 09:06:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-12-14 09:06:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6693. [2022-12-14 09:06:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3912 states have (on average 1.2809304703476483) internal successors, (5011), 4014 states have internal predecessors, (5011), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:06:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9778 transitions. [2022-12-14 09:06:59,497 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9778 transitions. Word has length 79 [2022-12-14 09:06:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:59,497 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9778 transitions. [2022-12-14 09:06:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 09:06:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9778 transitions. [2022-12-14 09:06:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 09:06:59,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:59,499 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 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] [2022-12-14 09:06:59,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:06:59,499 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:06:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1840864303, now seen corresponding path program 1 times [2022-12-14 09:06:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:59,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847361236] [2022-12-14 09:06:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:59,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 09:06:59,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:59,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847361236] [2022-12-14 09:06:59,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847361236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:59,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:59,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:06:59,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446205308] [2022-12-14 09:06:59,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:59,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:06:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:06:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:06:59,926 INFO L87 Difference]: Start difference. First operand 6693 states and 9778 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:07:10,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:10,482 INFO L93 Difference]: Finished difference Result 6693 states and 9778 transitions. [2022-12-14 09:07:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:07:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 80 [2022-12-14 09:07:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:10,498 INFO L225 Difference]: With dead ends: 6693 [2022-12-14 09:07:10,498 INFO L226 Difference]: Without dead ends: 6691 [2022-12-14 09:07:10,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:07:10,501 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5016 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 4364 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 15785 SdHoareTripleChecker+Invalid, 4365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:10,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 15785 Invalid, 4365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4364 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 09:07:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-12-14 09:07:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6691. [2022-12-14 09:07:11,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 3911 states have (on average 1.28023523395551) internal successors, (5007), 4012 states have internal predecessors, (5007), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9774 transitions. [2022-12-14 09:07:11,022 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9774 transitions. Word has length 80 [2022-12-14 09:07:11,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:11,022 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9774 transitions. [2022-12-14 09:07:11,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:07:11,023 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9774 transitions. [2022-12-14 09:07:11,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 09:07:11,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:11,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:07:11,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:07:11,024 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:11,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1165044267, now seen corresponding path program 1 times [2022-12-14 09:07:11,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:11,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402265284] [2022-12-14 09:07:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:11,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:07:11,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:11,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402265284] [2022-12-14 09:07:11,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402265284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:11,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:11,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:07:11,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621723513] [2022-12-14 09:07:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:11,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:07:11,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:11,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:07:11,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:07:11,242 INFO L87 Difference]: Start difference. First operand 6691 states and 9774 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:07:16,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:16,797 INFO L93 Difference]: Finished difference Result 6691 states and 9774 transitions. [2022-12-14 09:07:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:07:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-12-14 09:07:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:16,814 INFO L225 Difference]: With dead ends: 6691 [2022-12-14 09:07:16,814 INFO L226 Difference]: Without dead ends: 6689 [2022-12-14 09:07:16,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:16,817 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5016 mSDsluCounter, 4560 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 9123 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:16,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 9123 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 09:07:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2022-12-14 09:07:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2022-12-14 09:07:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6689 states, 3910 states have (on average 1.2800511508951407) internal successors, (5005), 4010 states have internal predecessors, (5005), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 9772 transitions. [2022-12-14 09:07:17,318 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 9772 transitions. Word has length 84 [2022-12-14 09:07:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:17,318 INFO L495 AbstractCegarLoop]: Abstraction has 6689 states and 9772 transitions. [2022-12-14 09:07:17,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:07:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 9772 transitions. [2022-12-14 09:07:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 09:07:17,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:17,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 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] [2022-12-14 09:07:17,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:07:17,319 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1049582700, now seen corresponding path program 1 times [2022-12-14 09:07:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:17,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666565751] [2022-12-14 09:07:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:17,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 09:07:17,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:17,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666565751] [2022-12-14 09:07:17,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666565751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:17,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:17,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:07:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828045713] [2022-12-14 09:07:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:17,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:07:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:17,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:07:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:07:17,464 INFO L87 Difference]: Start difference. First operand 6689 states and 9772 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:07:18,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:22,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:22,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:22,600 INFO L93 Difference]: Finished difference Result 13351 states and 19984 transitions. [2022-12-14 09:07:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:07:22,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 83 [2022-12-14 09:07:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:22,621 INFO L225 Difference]: With dead ends: 13351 [2022-12-14 09:07:22,621 INFO L226 Difference]: Without dead ends: 6681 [2022-12-14 09:07:22,645 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 [2022-12-14 09:07:22,646 INFO L413 NwaCegarLoop]: 4558 mSDtfsCounter, 5002 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:22,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 4558 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:07:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-12-14 09:07:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6681. [2022-12-14 09:07:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 3903 states have (on average 1.2790161414296695) internal successors, (4992), 4002 states have internal predecessors, (4992), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9759 transitions. [2022-12-14 09:07:23,168 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9759 transitions. Word has length 83 [2022-12-14 09:07:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:23,168 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9759 transitions. [2022-12-14 09:07:23,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:07:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9759 transitions. [2022-12-14 09:07:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 09:07:23,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:23,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:07:23,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:07:23,170 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1379213336, now seen corresponding path program 1 times [2022-12-14 09:07:23,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:23,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005601421] [2022-12-14 09:07:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:07:23,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:23,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005601421] [2022-12-14 09:07:23,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005601421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:23,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:23,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:07:23,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168550861] [2022-12-14 09:07:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:23,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:07:23,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:23,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:07:23,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:07:23,339 INFO L87 Difference]: Start difference. First operand 6681 states and 9759 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:07:28,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:28,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:28,879 INFO L93 Difference]: Finished difference Result 6681 states and 9759 transitions. [2022-12-14 09:07:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:07:28,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 86 [2022-12-14 09:07:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:28,896 INFO L225 Difference]: With dead ends: 6681 [2022-12-14 09:07:28,896 INFO L226 Difference]: Without dead ends: 6679 [2022-12-14 09:07:28,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:28,898 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5003 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 9113 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:28,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 9113 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 09:07:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-12-14 09:07:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-12-14 09:07:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 3902 states have (on average 1.2788313685289594) internal successors, (4990), 4000 states have internal predecessors, (4990), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9757 transitions. [2022-12-14 09:07:29,438 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9757 transitions. Word has length 86 [2022-12-14 09:07:29,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:29,439 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9757 transitions. [2022-12-14 09:07:29,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:07:29,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9757 transitions. [2022-12-14 09:07:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 09:07:29,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:29,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:07:29,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:07:29,441 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:29,442 INFO L85 PathProgramCache]: Analyzing trace with hash -806413211, now seen corresponding path program 1 times [2022-12-14 09:07:29,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:29,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667028575] [2022-12-14 09:07:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:29,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:07:29,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:29,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667028575] [2022-12-14 09:07:29,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667028575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:29,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:29,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:07:29,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082500499] [2022-12-14 09:07:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:29,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:07:29,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:29,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:07:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:07:29,647 INFO L87 Difference]: Start difference. First operand 6679 states and 9757 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 09:07:34,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:34,992 INFO L93 Difference]: Finished difference Result 6679 states and 9757 transitions. [2022-12-14 09:07:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:07:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-12-14 09:07:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:35,010 INFO L225 Difference]: With dead ends: 6679 [2022-12-14 09:07:35,010 INFO L226 Difference]: Without dead ends: 6677 [2022-12-14 09:07:35,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:35,012 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 5002 mSDsluCounter, 4555 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 9109 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:35,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 9109 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:07:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-12-14 09:07:35,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-12-14 09:07:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 3901 states have (on average 1.2786465008972059) internal successors, (4988), 3998 states have internal predecessors, (4988), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9755 transitions. [2022-12-14 09:07:35,563 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9755 transitions. Word has length 91 [2022-12-14 09:07:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:35,563 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9755 transitions. [2022-12-14 09:07:35,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 09:07:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9755 transitions. [2022-12-14 09:07:35,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 09:07:35,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:35,564 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:07:35,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:07:35,564 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:35,565 INFO L85 PathProgramCache]: Analyzing trace with hash -677064958, now seen corresponding path program 1 times [2022-12-14 09:07:35,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:35,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084697308] [2022-12-14 09:07:35,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:35,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:07:35,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:35,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084697308] [2022-12-14 09:07:35,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084697308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:35,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:35,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:07:35,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60075124] [2022-12-14 09:07:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:35,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:07:35,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:07:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:07:35,735 INFO L87 Difference]: Start difference. First operand 6677 states and 9755 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:07:41,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:41,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:41,475 INFO L93 Difference]: Finished difference Result 6677 states and 9755 transitions. [2022-12-14 09:07:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:07:41,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2022-12-14 09:07:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:41,492 INFO L225 Difference]: With dead ends: 6677 [2022-12-14 09:07:41,492 INFO L226 Difference]: Without dead ends: 6675 [2022-12-14 09:07:41,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:41,495 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 4999 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9103 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:41,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9103 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 09:07:41,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-12-14 09:07:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6675. [2022-12-14 09:07:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 3900 states have (on average 1.2784615384615385) internal successors, (4986), 3996 states have internal predecessors, (4986), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-12-14 09:07:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9753 transitions. [2022-12-14 09:07:42,056 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9753 transitions. Word has length 96 [2022-12-14 09:07:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:42,056 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9753 transitions. [2022-12-14 09:07:42,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:07:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9753 transitions. [2022-12-14 09:07:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 09:07:42,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:42,058 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 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] [2022-12-14 09:07:42,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:07:42,058 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1238476321, now seen corresponding path program 1 times [2022-12-14 09:07:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301489980] [2022-12-14 09:07:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:42,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 09:07:42,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:42,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301489980] [2022-12-14 09:07:42,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301489980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:42,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:42,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:07:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853298635] [2022-12-14 09:07:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:42,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:07:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:07:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:42,403 INFO L87 Difference]: Start difference. First operand 6675 states and 9753 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:07:52,461 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 [] [2022-12-14 09:07:53,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:53,868 INFO L93 Difference]: Finished difference Result 6847 states and 9934 transitions. [2022-12-14 09:07:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:07:53,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2022-12-14 09:07:53,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:53,883 INFO L225 Difference]: With dead ends: 6847 [2022-12-14 09:07:53,883 INFO L226 Difference]: Without dead ends: 6845 [2022-12-14 09:07:53,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:07:53,885 INFO L413 NwaCegarLoop]: 7563 mSDtfsCounter, 5131 mSDsluCounter, 18680 mSDsCounter, 0 mSdLazyCounter, 2816 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 26243 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:53,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 26243 Invalid, 2816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2816 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 09:07:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2022-12-14 09:07:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6683. [2022-12-14 09:07:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 3907 states have (on average 1.2779626311748145) internal successors, (4993), 4001 states have internal predecessors, (4993), 2248 states have call successors, (2248), 516 states have call predecessors, (2248), 511 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-12-14 09:07:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9756 transitions. [2022-12-14 09:07:54,437 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9756 transitions. Word has length 102 [2022-12-14 09:07:54,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:54,437 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 9756 transitions. [2022-12-14 09:07:54,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:07:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9756 transitions. [2022-12-14 09:07:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 09:07:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:54,438 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 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] [2022-12-14 09:07:54,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:07:54,439 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:07:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1014208188, now seen corresponding path program 1 times [2022-12-14 09:07:54,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214289698] [2022-12-14 09:07:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:54,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 09:07:54,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214289698] [2022-12-14 09:07:54,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214289698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:54,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:54,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:07:54,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084913105] [2022-12-14 09:07:54,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:54,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:07:54,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:07:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:54,835 INFO L87 Difference]: Start difference. First operand 6683 states and 9756 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:02,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:02,229 INFO L93 Difference]: Finished difference Result 6709 states and 9778 transitions. [2022-12-14 09:08:02,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:08:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-12-14 09:08:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:02,244 INFO L225 Difference]: With dead ends: 6709 [2022-12-14 09:08:02,244 INFO L226 Difference]: Without dead ends: 6707 [2022-12-14 09:08:02,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:08:02,246 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 4946 mSDsluCounter, 9162 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 13718 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:02,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4950 Valid, 13718 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1435 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 09:08:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6707 states. [2022-12-14 09:08:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6707 to 6701. [2022-12-14 09:08:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3919 states have (on average 1.2771115080377646) internal successors, (5005), 4013 states have internal predecessors, (5005), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 517 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-12-14 09:08:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9768 transitions. [2022-12-14 09:08:02,838 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9768 transitions. Word has length 104 [2022-12-14 09:08:02,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:02,838 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9768 transitions. [2022-12-14 09:08:02,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9768 transitions. [2022-12-14 09:08:02,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 09:08:02,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:02,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:08:02,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:08:02,840 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:08:02,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash 981390407, now seen corresponding path program 1 times [2022-12-14 09:08:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:02,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259256921] [2022-12-14 09:08:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:08:03,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:03,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259256921] [2022-12-14 09:08:03,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259256921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:03,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:03,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:08:03,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502025002] [2022-12-14 09:08:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:03,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:08:03,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:03,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:08:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:08:03,017 INFO L87 Difference]: Start difference. First operand 6701 states and 9768 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:08,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:08,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:08,579 INFO L93 Difference]: Finished difference Result 6705 states and 9774 transitions. [2022-12-14 09:08:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:08:08,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-12-14 09:08:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:08,594 INFO L225 Difference]: With dead ends: 6705 [2022-12-14 09:08:08,594 INFO L226 Difference]: Without dead ends: 6703 [2022-12-14 09:08:08,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:08:08,596 INFO L413 NwaCegarLoop]: 4550 mSDtfsCounter, 4996 mSDsluCounter, 4551 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:08,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 9101 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 09:08:08,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-12-14 09:08:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6699. [2022-12-14 09:08:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 3918 states have (on average 1.2769270035732516) internal successors, (5003), 4011 states have internal predecessors, (5003), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 517 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-12-14 09:08:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9766 transitions. [2022-12-14 09:08:09,180 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9766 transitions. Word has length 101 [2022-12-14 09:08:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:09,180 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9766 transitions. [2022-12-14 09:08:09,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9766 transitions. [2022-12-14 09:08:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 09:08:09,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:09,181 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 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] [2022-12-14 09:08:09,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:08:09,182 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:08:09,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash -943059749, now seen corresponding path program 1 times [2022-12-14 09:08:09,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:09,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436814789] [2022-12-14 09:08:09,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:09,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-12-14 09:08:09,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:09,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436814789] [2022-12-14 09:08:09,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436814789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:09,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:09,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:08:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188349171] [2022-12-14 09:08:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:08:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:08:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:08:09,465 INFO L87 Difference]: Start difference. First operand 6699 states and 9766 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:18,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:18,969 INFO L93 Difference]: Finished difference Result 6711 states and 9774 transitions. [2022-12-14 09:08:18,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:08:18,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-12-14 09:08:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:18,985 INFO L225 Difference]: With dead ends: 6711 [2022-12-14 09:08:18,985 INFO L226 Difference]: Without dead ends: 6709 [2022-12-14 09:08:18,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:08:18,988 INFO L413 NwaCegarLoop]: 5113 mSDtfsCounter, 792 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 19793 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:18,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 19793 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2139 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 09:08:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2022-12-14 09:08:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6703. [2022-12-14 09:08:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 3921 states have (on average 1.2764600867125733) internal successors, (5005), 4014 states have internal predecessors, (5005), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 518 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-12-14 09:08:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9768 transitions. [2022-12-14 09:08:19,585 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9768 transitions. Word has length 106 [2022-12-14 09:08:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:19,585 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9768 transitions. [2022-12-14 09:08:19,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 09:08:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9768 transitions. [2022-12-14 09:08:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 09:08:19,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:19,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:08:19,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:08:19,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:08:19,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash -40805410, now seen corresponding path program 1 times [2022-12-14 09:08:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:19,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335217941] [2022-12-14 09:08:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:08:19,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:19,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335217941] [2022-12-14 09:08:19,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335217941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:19,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:19,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:08:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968948859] [2022-12-14 09:08:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:19,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:08:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:08:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:08:19,757 INFO L87 Difference]: Start difference. First operand 6703 states and 9768 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 09:08:24,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:24,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:24,980 INFO L93 Difference]: Finished difference Result 6707 states and 9774 transitions. [2022-12-14 09:08:24,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:08:24,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2022-12-14 09:08:24,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:24,994 INFO L225 Difference]: With dead ends: 6707 [2022-12-14 09:08:24,994 INFO L226 Difference]: Without dead ends: 6705 [2022-12-14 09:08:24,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:08:24,996 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 4993 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 9097 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:24,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 9097 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:08:25,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-12-14 09:08:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6701. [2022-12-14 09:08:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3920 states have (on average 1.2762755102040817) internal successors, (5003), 4012 states have internal predecessors, (5003), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 518 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-12-14 09:08:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9766 transitions. [2022-12-14 09:08:25,620 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9766 transitions. Word has length 106 [2022-12-14 09:08:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:25,620 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9766 transitions. [2022-12-14 09:08:25,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 09:08:25,620 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9766 transitions. [2022-12-14 09:08:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 09:08:25,622 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:25,622 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 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] [2022-12-14 09:08:25,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:08:25,622 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:08:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:25,622 INFO L85 PathProgramCache]: Analyzing trace with hash 638359506, now seen corresponding path program 1 times [2022-12-14 09:08:25,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:25,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445206775] [2022-12-14 09:08:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 09:08:26,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:26,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445206775] [2022-12-14 09:08:26,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445206775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:26,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:26,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:08:26,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828516099] [2022-12-14 09:08:26,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:26,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:08:26,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:26,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:08:26,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:08:26,102 INFO L87 Difference]: Start difference. First operand 6701 states and 9766 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:08:52,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:55,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:57,871 INFO L93 Difference]: Finished difference Result 13283 states and 19384 transitions. [2022-12-14 09:08:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:08:57,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-12-14 09:08:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:57,906 INFO L225 Difference]: With dead ends: 13283 [2022-12-14 09:08:57,906 INFO L226 Difference]: Without dead ends: 13281 [2022-12-14 09:08:57,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:08:57,910 INFO L413 NwaCegarLoop]: 4792 mSDtfsCounter, 7985 mSDsluCounter, 10362 mSDsCounter, 0 mSdLazyCounter, 15496 mSolverCounterSat, 287 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8947 SdHoareTripleChecker+Valid, 15154 SdHoareTripleChecker+Invalid, 15785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 15496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:57,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8947 Valid, 15154 Invalid, 15785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [287 Valid, 15496 Invalid, 2 Unknown, 0 Unchecked, 29.8s Time] [2022-12-14 09:08:57,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13281 states. [2022-12-14 09:08:59,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13281 to 13123. [2022-12-14 09:08:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13123 states, 7693 states have (on average 1.2794748472637463) internal successors, (9843), 7866 states have internal predecessors, (9843), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4937), 4355 states have call predecessors, (4937), 4413 states have call successors, (4937) [2022-12-14 09:08:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13123 states to 13123 states and 19195 transitions. [2022-12-14 09:08:59,149 INFO L78 Accepts]: Start accepts. Automaton has 13123 states and 19195 transitions. Word has length 111 [2022-12-14 09:08:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:59,149 INFO L495 AbstractCegarLoop]: Abstraction has 13123 states and 19195 transitions. [2022-12-14 09:08:59,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:08:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 13123 states and 19195 transitions. [2022-12-14 09:08:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 09:08:59,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:59,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:08:59,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 09:08:59,151 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:08:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash 545907751, now seen corresponding path program 1 times [2022-12-14 09:08:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:59,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31627245] [2022-12-14 09:08:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:08:59,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:59,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31627245] [2022-12-14 09:08:59,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31627245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:59,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:59,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:08:59,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092764624] [2022-12-14 09:08:59,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:59,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:08:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:59,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:08:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:08:59,355 INFO L87 Difference]: Start difference. First operand 13123 states and 19195 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:09:06,284 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 [] [2022-12-14 09:09:06,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:06,411 INFO L93 Difference]: Finished difference Result 13123 states and 19195 transitions. [2022-12-14 09:09:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:09:06,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-12-14 09:09:06,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:06,442 INFO L225 Difference]: With dead ends: 13123 [2022-12-14 09:09:06,442 INFO L226 Difference]: Without dead ends: 13121 [2022-12-14 09:09:06,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:06,446 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 4991 mSDsluCounter, 4546 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4993 SdHoareTripleChecker+Valid, 9092 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:06,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4993 Valid, 9092 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 09:09:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13121 states. [2022-12-14 09:09:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13121 to 13121. [2022-12-14 09:09:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13121 states, 7692 states have (on average 1.27938117524701) internal successors, (9841), 7864 states have internal predecessors, (9841), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4937), 4355 states have call predecessors, (4937), 4413 states have call successors, (4937) [2022-12-14 09:09:07,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13121 states to 13121 states and 19193 transitions. [2022-12-14 09:09:07,834 INFO L78 Accepts]: Start accepts. Automaton has 13121 states and 19193 transitions. Word has length 111 [2022-12-14 09:09:07,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:07,834 INFO L495 AbstractCegarLoop]: Abstraction has 13121 states and 19193 transitions. [2022-12-14 09:09:07,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:09:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 13121 states and 19193 transitions. [2022-12-14 09:09:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 09:09:07,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:07,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:09:07,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:09:07,837 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:09:07,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:07,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1288492126, now seen corresponding path program 1 times [2022-12-14 09:09:07,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:07,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882341706] [2022-12-14 09:09:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:07,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:09:08,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:08,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882341706] [2022-12-14 09:09:08,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882341706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:08,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:08,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:09:08,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166356784] [2022-12-14 09:09:08,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:08,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:08,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:08,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:08,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:08,108 INFO L87 Difference]: Start difference. First operand 13121 states and 19193 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 09:09:15,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:15,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:15,353 INFO L93 Difference]: Finished difference Result 13121 states and 19193 transitions. [2022-12-14 09:09:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:09:15,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-12-14 09:09:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:15,383 INFO L225 Difference]: With dead ends: 13121 [2022-12-14 09:09:15,383 INFO L226 Difference]: Without dead ends: 13119 [2022-12-14 09:09:15,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:15,388 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 4988 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 9088 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:15,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 9088 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 09:09:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13119 states. [2022-12-14 09:09:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13119 to 13119. [2022-12-14 09:09:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13119 states, 7691 states have (on average 1.2792874788714081) internal successors, (9839), 7862 states have internal predecessors, (9839), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4937), 4355 states have call predecessors, (4937), 4413 states have call successors, (4937) [2022-12-14 09:09:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13119 states to 13119 states and 19191 transitions. [2022-12-14 09:09:16,915 INFO L78 Accepts]: Start accepts. Automaton has 13119 states and 19191 transitions. Word has length 116 [2022-12-14 09:09:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:16,916 INFO L495 AbstractCegarLoop]: Abstraction has 13119 states and 19191 transitions. [2022-12-14 09:09:16,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 09:09:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13119 states and 19191 transitions. [2022-12-14 09:09:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-14 09:09:16,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:16,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:16,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 09:09:16,918 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:09:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1371478590, now seen corresponding path program 1 times [2022-12-14 09:09:16,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:16,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505524394] [2022-12-14 09:09:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:16,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-14 09:09:17,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:17,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505524394] [2022-12-14 09:09:17,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505524394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:17,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:17,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:09:17,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088277297] [2022-12-14 09:09:17,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:09:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:09:17,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:17,273 INFO L87 Difference]: Start difference. First operand 13119 states and 19191 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 09:09:24,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:27,395 INFO L93 Difference]: Finished difference Result 25380 states and 37222 transitions. [2022-12-14 09:09:27,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:09:27,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-12-14 09:09:27,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:27,465 INFO L225 Difference]: With dead ends: 25380 [2022-12-14 09:09:27,465 INFO L226 Difference]: Without dead ends: 25378 [2022-12-14 09:09:27,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:09:27,475 INFO L413 NwaCegarLoop]: 5669 mSDtfsCounter, 4929 mSDsluCounter, 15563 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:27,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 21232 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 09:09:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25378 states. [2022-12-14 09:09:30,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25378 to 25295. [2022-12-14 09:09:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25295 states, 14871 states have (on average 1.2811512339452626) internal successors, (19052), 15189 states have internal predecessors, (19052), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1931 states have return successors, (9600), 8363 states have call predecessors, (9600), 8478 states have call successors, (9600) [2022-12-14 09:09:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25295 states to 25295 states and 37132 transitions. [2022-12-14 09:09:30,136 INFO L78 Accepts]: Start accepts. Automaton has 25295 states and 37132 transitions. Word has length 142 [2022-12-14 09:09:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:30,136 INFO L495 AbstractCegarLoop]: Abstraction has 25295 states and 37132 transitions. [2022-12-14 09:09:30,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 09:09:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 25295 states and 37132 transitions. [2022-12-14 09:09:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 09:09:30,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:30,138 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:09:30,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 09:09:30,138 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:09:30,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:30,139 INFO L85 PathProgramCache]: Analyzing trace with hash 168575710, now seen corresponding path program 1 times [2022-12-14 09:09:30,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:30,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981066136] [2022-12-14 09:09:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:30,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:09:30,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:30,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981066136] [2022-12-14 09:09:30,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981066136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:30,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:30,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:09:30,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840185869] [2022-12-14 09:09:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:30,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:30,488 INFO L87 Difference]: Start difference. First operand 25295 states and 37132 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 09:09:36,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:37,963 INFO L93 Difference]: Finished difference Result 25299 states and 37138 transitions. [2022-12-14 09:09:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:09:37,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 121 [2022-12-14 09:09:37,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:38,027 INFO L225 Difference]: With dead ends: 25299 [2022-12-14 09:09:38,027 INFO L226 Difference]: Without dead ends: 25297 [2022-12-14 09:09:38,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:38,036 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 4984 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:38,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 9085 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:09:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25297 states. [2022-12-14 09:09:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25297 to 25297. [2022-12-14 09:09:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25297 states, 14872 states have (on average 1.2809978483055406) internal successors, (19051), 15191 states have internal predecessors, (19051), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1933 states have return successors, (9604), 8363 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-12-14 09:09:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25297 states to 25297 states and 37135 transitions. [2022-12-14 09:09:41,014 INFO L78 Accepts]: Start accepts. Automaton has 25297 states and 37135 transitions. Word has length 121 [2022-12-14 09:09:41,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:41,015 INFO L495 AbstractCegarLoop]: Abstraction has 25297 states and 37135 transitions. [2022-12-14 09:09:41,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 09:09:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 25297 states and 37135 transitions. [2022-12-14 09:09:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-14 09:09:41,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:41,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:09:41,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 09:09:41,017 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:09:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:41,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1248774457, now seen corresponding path program 1 times [2022-12-14 09:09:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:41,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825160222] [2022-12-14 09:09:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:41,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:09:41,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:41,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825160222] [2022-12-14 09:09:41,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825160222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:41,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:41,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:09:41,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895673750] [2022-12-14 09:09:41,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:41,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:41,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:41,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:41,197 INFO L87 Difference]: Start difference. First operand 25297 states and 37135 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 09:09:47,229 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 [] [2022-12-14 09:09:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:48,536 INFO L93 Difference]: Finished difference Result 25297 states and 37135 transitions. [2022-12-14 09:09:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:09:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 126 [2022-12-14 09:09:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:48,605 INFO L225 Difference]: With dead ends: 25297 [2022-12-14 09:09:48,605 INFO L226 Difference]: Without dead ends: 25295 [2022-12-14 09:09:48,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:48,616 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 4981 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 9081 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:48,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 9081 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:09:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25295 states. [2022-12-14 09:09:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25295 to 25295. [2022-12-14 09:09:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25295 states, 14871 states have (on average 1.2808822540515097) internal successors, (19048), 15189 states have internal predecessors, (19048), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1933 states have return successors, (9604), 8363 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-12-14 09:09:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25295 states to 25295 states and 37132 transitions. [2022-12-14 09:09:51,446 INFO L78 Accepts]: Start accepts. Automaton has 25295 states and 37132 transitions. Word has length 126 [2022-12-14 09:09:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 25295 states and 37132 transitions. [2022-12-14 09:09:51,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 09:09:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 25295 states and 37132 transitions. [2022-12-14 09:09:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 09:09:51,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:51,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:09:51,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 09:09:51,449 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:09:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1562918226, now seen corresponding path program 1 times [2022-12-14 09:09:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:51,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228614021] [2022-12-14 09:09:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:09:51,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:51,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228614021] [2022-12-14 09:09:51,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228614021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:51,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:51,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:09:51,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116443226] [2022-12-14 09:09:51,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:51,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:51,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:51,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:51,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:51,628 INFO L87 Difference]: Start difference. First operand 25295 states and 37132 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:09:59,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:01,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:01,025 INFO L93 Difference]: Finished difference Result 25555 states and 37407 transitions. [2022-12-14 09:10:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:10:01,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 131 [2022-12-14 09:10:01,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:01,097 INFO L225 Difference]: With dead ends: 25555 [2022-12-14 09:10:01,097 INFO L226 Difference]: Without dead ends: 25553 [2022-12-14 09:10:01,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:01,108 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 4902 mSDsluCounter, 10269 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16018 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:01,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16018 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1421 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 09:10:01,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25553 states. [2022-12-14 09:10:03,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25553 to 25505. [2022-12-14 09:10:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25505 states, 14992 states have (on average 1.2786152614727855) internal successors, (19169), 15311 states have internal predecessors, (19169), 8533 states have call successors, (8533), 1995 states have call predecessors, (8533), 1969 states have return successors, (9657), 8415 states have call predecessors, (9657), 8531 states have call successors, (9657) [2022-12-14 09:10:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25505 states to 25505 states and 37359 transitions. [2022-12-14 09:10:03,973 INFO L78 Accepts]: Start accepts. Automaton has 25505 states and 37359 transitions. Word has length 131 [2022-12-14 09:10:03,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:03,974 INFO L495 AbstractCegarLoop]: Abstraction has 25505 states and 37359 transitions. [2022-12-14 09:10:03,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:10:03,974 INFO L276 IsEmpty]: Start isEmpty. Operand 25505 states and 37359 transitions. [2022-12-14 09:10:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-14 09:10:03,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:03,976 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:10:03,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 09:10:03,976 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:10:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash -20650924, now seen corresponding path program 1 times [2022-12-14 09:10:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:03,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845218097] [2022-12-14 09:10:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:03,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-12-14 09:10:04,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:04,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845218097] [2022-12-14 09:10:04,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845218097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:04,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:04,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:10:04,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865430293] [2022-12-14 09:10:04,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:10:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:04,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:10:04,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:04,235 INFO L87 Difference]: Start difference. First operand 25505 states and 37359 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-12-14 09:10:11,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:13,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:15,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:17,427 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 [] [2022-12-14 09:10:18,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:18,797 INFO L93 Difference]: Finished difference Result 25559 states and 37396 transitions. [2022-12-14 09:10:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:10:18,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 156 [2022-12-14 09:10:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:18,869 INFO L225 Difference]: With dead ends: 25559 [2022-12-14 09:10:18,869 INFO L226 Difference]: Without dead ends: 25557 [2022-12-14 09:10:18,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:10:18,878 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 51 mSDsluCounter, 13587 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18133 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:18,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18133 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1911 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-12-14 09:10:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25557 states. [2022-12-14 09:10:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25557 to 25557. [2022-12-14 09:10:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25557 states, 15020 states have (on average 1.2778295605858856) internal successors, (19193), 15339 states have internal predecessors, (19193), 8537 states have call successors, (8537), 2015 states have call predecessors, (8537), 1989 states have return successors, (9661), 8419 states have call predecessors, (9661), 8535 states have call successors, (9661) [2022-12-14 09:10:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25557 states to 25557 states and 37391 transitions. [2022-12-14 09:10:21,737 INFO L78 Accepts]: Start accepts. Automaton has 25557 states and 37391 transitions. Word has length 156 [2022-12-14 09:10:21,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:21,737 INFO L495 AbstractCegarLoop]: Abstraction has 25557 states and 37391 transitions. [2022-12-14 09:10:21,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-12-14 09:10:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 25557 states and 37391 transitions. [2022-12-14 09:10:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-14 09:10:21,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:21,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:10:21,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 09:10:21,740 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:10:21,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1753359688, now seen corresponding path program 1 times [2022-12-14 09:10:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:21,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176106902] [2022-12-14 09:10:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:10:21,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:21,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176106902] [2022-12-14 09:10:21,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176106902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:21,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:21,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:10:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431247346] [2022-12-14 09:10:21,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:21,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:10:21,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:10:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:10:21,925 INFO L87 Difference]: Start difference. First operand 25557 states and 37391 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:10:28,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:29,739 INFO L93 Difference]: Finished difference Result 25557 states and 37391 transitions. [2022-12-14 09:10:29,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:10:29,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2022-12-14 09:10:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:29,806 INFO L225 Difference]: With dead ends: 25557 [2022-12-14 09:10:29,806 INFO L226 Difference]: Without dead ends: 25555 [2022-12-14 09:10:29,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:29,816 INFO L413 NwaCegarLoop]: 4538 mSDtfsCounter, 4977 mSDsluCounter, 4539 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 9077 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:29,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 9077 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 09:10:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25555 states. [2022-12-14 09:10:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25555 to 25555. [2022-12-14 09:10:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25555 states, 15019 states have (on average 1.2777148944670085) internal successors, (19190), 15337 states have internal predecessors, (19190), 8537 states have call successors, (8537), 2015 states have call predecessors, (8537), 1989 states have return successors, (9661), 8419 states have call predecessors, (9661), 8535 states have call successors, (9661) [2022-12-14 09:10:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25555 states to 25555 states and 37388 transitions. [2022-12-14 09:10:32,783 INFO L78 Accepts]: Start accepts. Automaton has 25555 states and 37388 transitions. Word has length 136 [2022-12-14 09:10:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:32,783 INFO L495 AbstractCegarLoop]: Abstraction has 25555 states and 37388 transitions. [2022-12-14 09:10:32,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:10:32,783 INFO L276 IsEmpty]: Start isEmpty. Operand 25555 states and 37388 transitions. [2022-12-14 09:10:32,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-14 09:10:32,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:32,786 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 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] [2022-12-14 09:10:32,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 09:10:32,786 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:10:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1077457538, now seen corresponding path program 1 times [2022-12-14 09:10:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:32,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254545348] [2022-12-14 09:10:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-14 09:10:33,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:33,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254545348] [2022-12-14 09:10:33,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254545348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:33,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:33,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:10:33,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439900008] [2022-12-14 09:10:33,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:33,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:10:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:33,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:10:33,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:33,061 INFO L87 Difference]: Start difference. First operand 25555 states and 37388 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:10:40,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:42,346 INFO L93 Difference]: Finished difference Result 25555 states and 37388 transitions. [2022-12-14 09:10:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:10:42,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-12-14 09:10:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:42,410 INFO L225 Difference]: With dead ends: 25555 [2022-12-14 09:10:42,410 INFO L226 Difference]: Without dead ends: 25553 [2022-12-14 09:10:42,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:10:42,417 INFO L413 NwaCegarLoop]: 4536 mSDtfsCounter, 43 mSDsluCounter, 13562 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 18098 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:42,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 18098 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1901 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 09:10:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25553 states. [2022-12-14 09:10:45,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25553 to 25553. [2022-12-14 09:10:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25553 states, 15018 states have (on average 1.2772006925023305) internal successors, (19181), 15335 states have internal predecessors, (19181), 8537 states have call successors, (8537), 2015 states have call predecessors, (8537), 1989 states have return successors, (9661), 8419 states have call predecessors, (9661), 8535 states have call successors, (9661) [2022-12-14 09:10:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25553 states to 25553 states and 37379 transitions. [2022-12-14 09:10:45,387 INFO L78 Accepts]: Start accepts. Automaton has 25553 states and 37379 transitions. Word has length 144 [2022-12-14 09:10:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:45,387 INFO L495 AbstractCegarLoop]: Abstraction has 25553 states and 37379 transitions. [2022-12-14 09:10:45,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:10:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 25553 states and 37379 transitions. [2022-12-14 09:10:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 09:10:45,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:45,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:10:45,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 09:10:45,392 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:10:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2132363766, now seen corresponding path program 1 times [2022-12-14 09:10:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:45,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219140038] [2022-12-14 09:10:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:45,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:10:45,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:45,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219140038] [2022-12-14 09:10:45,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219140038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:45,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:45,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:10:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073832737] [2022-12-14 09:10:45,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:45,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:10:45,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:45,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:10:45,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:10:45,640 INFO L87 Difference]: Start difference. First operand 25553 states and 37379 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:10:51,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:53,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:53,082 INFO L93 Difference]: Finished difference Result 25553 states and 37379 transitions. [2022-12-14 09:10:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:10:53,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 141 [2022-12-14 09:10:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:53,147 INFO L225 Difference]: With dead ends: 25553 [2022-12-14 09:10:53,147 INFO L226 Difference]: Without dead ends: 25551 [2022-12-14 09:10:53,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:53,156 INFO L413 NwaCegarLoop]: 4534 mSDtfsCounter, 4972 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 9069 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:53,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 9069 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:10:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25551 states. [2022-12-14 09:10:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25551 to 25551. [2022-12-14 09:10:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25551 states, 15017 states have (on average 1.277085969234867) internal successors, (19178), 15333 states have internal predecessors, (19178), 8537 states have call successors, (8537), 2015 states have call predecessors, (8537), 1989 states have return successors, (9661), 8419 states have call predecessors, (9661), 8535 states have call successors, (9661) [2022-12-14 09:10:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25551 states to 25551 states and 37376 transitions. [2022-12-14 09:10:56,251 INFO L78 Accepts]: Start accepts. Automaton has 25551 states and 37376 transitions. Word has length 141 [2022-12-14 09:10:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:56,252 INFO L495 AbstractCegarLoop]: Abstraction has 25551 states and 37376 transitions. [2022-12-14 09:10:56,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:10:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 25551 states and 37376 transitions. [2022-12-14 09:10:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 09:10:56,254 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:56,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 09:10:56,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 09:10:56,255 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:10:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash 210136388, now seen corresponding path program 1 times [2022-12-14 09:10:56,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:56,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739133580] [2022-12-14 09:10:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:56,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:10:56,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:56,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739133580] [2022-12-14 09:10:56,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739133580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:56,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:56,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:10:56,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161072983] [2022-12-14 09:10:56,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:56,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:10:56,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:56,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:10:56,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:10:56,490 INFO L87 Difference]: Start difference. First operand 25551 states and 37376 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:11:03,559 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 [] [2022-12-14 09:11:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:05,071 INFO L93 Difference]: Finished difference Result 25551 states and 37376 transitions. [2022-12-14 09:11:05,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:11:05,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 146 [2022-12-14 09:11:05,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:05,140 INFO L225 Difference]: With dead ends: 25551 [2022-12-14 09:11:05,140 INFO L226 Difference]: Without dead ends: 25303 [2022-12-14 09:11:05,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:11:05,152 INFO L413 NwaCegarLoop]: 4533 mSDtfsCounter, 4970 mSDsluCounter, 4533 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 9066 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:05,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 9066 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 09:11:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25303 states. [2022-12-14 09:11:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25303 to 25300. [2022-12-14 09:11:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25300 states, 14875 states have (on average 1.2790588235294118) internal successors, (19026), 15185 states have internal predecessors, (19026), 8471 states have call successors, (8471), 1973 states have call predecessors, (8471), 1947 states have return successors, (9595), 8358 states have call predecessors, (9595), 8469 states have call successors, (9595) [2022-12-14 09:11:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25300 states to 25300 states and 37092 transitions. [2022-12-14 09:11:08,710 INFO L78 Accepts]: Start accepts. Automaton has 25300 states and 37092 transitions. Word has length 146 [2022-12-14 09:11:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:08,711 INFO L495 AbstractCegarLoop]: Abstraction has 25300 states and 37092 transitions. [2022-12-14 09:11:08,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:11:08,711 INFO L276 IsEmpty]: Start isEmpty. Operand 25300 states and 37092 transitions. [2022-12-14 09:11:08,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-14 09:11:08,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:08,715 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:11:08,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 09:11:08,715 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:11:08,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1313281758, now seen corresponding path program 1 times [2022-12-14 09:11:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:08,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070061484] [2022-12-14 09:11:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:08,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:11:09,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:09,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070061484] [2022-12-14 09:11:09,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070061484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:09,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:09,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:11:09,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558119035] [2022-12-14 09:11:09,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:09,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:11:09,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:11:09,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:11:09,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:11:09,362 INFO L87 Difference]: Start difference. First operand 25300 states and 37092 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:11:18,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:11:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:20,306 INFO L93 Difference]: Finished difference Result 27754 states and 40143 transitions. [2022-12-14 09:11:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:11:20,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 194 [2022-12-14 09:11:20,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:20,378 INFO L225 Difference]: With dead ends: 27754 [2022-12-14 09:11:20,378 INFO L226 Difference]: Without dead ends: 27752 [2022-12-14 09:11:20,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:11:20,388 INFO L413 NwaCegarLoop]: 4726 mSDtfsCounter, 4775 mSDsluCounter, 10161 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 14887 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:20,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 14887 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1531 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 09:11:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27752 states. [2022-12-14 09:11:23,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27752 to 27748. [2022-12-14 09:11:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27748 states, 16275 states have (on average 1.2717665130568356) internal successors, (20698), 16597 states have internal predecessors, (20698), 9147 states have call successors, (9147), 2353 states have call predecessors, (9147), 2319 states have return successors, (10287), 9022 states have call predecessors, (10287), 9145 states have call successors, (10287) [2022-12-14 09:11:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27748 states to 27748 states and 40132 transitions. [2022-12-14 09:11:23,900 INFO L78 Accepts]: Start accepts. Automaton has 27748 states and 40132 transitions. Word has length 194 [2022-12-14 09:11:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:23,900 INFO L495 AbstractCegarLoop]: Abstraction has 27748 states and 40132 transitions. [2022-12-14 09:11:23,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:11:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 27748 states and 40132 transitions. [2022-12-14 09:11:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 09:11:23,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:23,905 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 09:11:23,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 09:11:23,905 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:11:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 319902660, now seen corresponding path program 1 times [2022-12-14 09:11:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:23,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50341632] [2022-12-14 09:11:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-12-14 09:11:24,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:24,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50341632] [2022-12-14 09:11:24,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50341632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:24,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:24,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:11:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963596883] [2022-12-14 09:11:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:24,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:11:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:11:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:11:24,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:11:24,117 INFO L87 Difference]: Start difference. First operand 27748 states and 40132 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:11:33,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:11:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:35,614 INFO L93 Difference]: Finished difference Result 54975 states and 79609 transitions. [2022-12-14 09:11:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:11:35,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 208 [2022-12-14 09:11:35,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:35,695 INFO L225 Difference]: With dead ends: 54975 [2022-12-14 09:11:35,695 INFO L226 Difference]: Without dead ends: 27796 [2022-12-14 09:11:35,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:11:35,763 INFO L413 NwaCegarLoop]: 4517 mSDtfsCounter, 3 mSDsluCounter, 18050 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22567 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:35,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22567 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2375 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 09:11:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27796 states. [2022-12-14 09:11:39,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27796 to 27796. [2022-12-14 09:11:39,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27796 states, 16307 states have (on average 1.271233212730729) internal successors, (20730), 16637 states have internal predecessors, (20730), 9147 states have call successors, (9147), 2353 states have call predecessors, (9147), 2335 states have return successors, (10359), 9030 states have call predecessors, (10359), 9145 states have call successors, (10359) [2022-12-14 09:11:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27796 states to 27796 states and 40236 transitions. [2022-12-14 09:11:39,245 INFO L78 Accepts]: Start accepts. Automaton has 27796 states and 40236 transitions. Word has length 208 [2022-12-14 09:11:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:39,245 INFO L495 AbstractCegarLoop]: Abstraction has 27796 states and 40236 transitions. [2022-12-14 09:11:39,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:11:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27796 states and 40236 transitions. [2022-12-14 09:11:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-12-14 09:11:39,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:39,250 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 09:11:39,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 09:11:39,250 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:11:39,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:39,251 INFO L85 PathProgramCache]: Analyzing trace with hash 323564666, now seen corresponding path program 1 times [2022-12-14 09:11:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:39,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497055529] [2022-12-14 09:11:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:39,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-12-14 09:11:39,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497055529] [2022-12-14 09:11:39,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497055529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:39,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:39,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:11:39,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400879993] [2022-12-14 09:11:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:39,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:11:39,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:11:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:11:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:11:39,478 INFO L87 Difference]: Start difference. First operand 27796 states and 40236 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:11:49,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:11:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:51,588 INFO L93 Difference]: Finished difference Result 55055 states and 79753 transitions. [2022-12-14 09:11:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:11:51,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 213 [2022-12-14 09:11:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:51,672 INFO L225 Difference]: With dead ends: 55055 [2022-12-14 09:11:51,672 INFO L226 Difference]: Without dead ends: 27828 [2022-12-14 09:11:51,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:11:51,742 INFO L413 NwaCegarLoop]: 4517 mSDtfsCounter, 3 mSDsluCounter, 18048 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22565 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:51,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22565 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2377 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 09:11:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27828 states. [2022-12-14 09:11:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27828 to 27828. [2022-12-14 09:11:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27828 states, 16331 states have (on average 1.2708346090257792) internal successors, (20754), 16661 states have internal predecessors, (20754), 9147 states have call successors, (9147), 2353 states have call predecessors, (9147), 2343 states have return successors, (10375), 9038 states have call predecessors, (10375), 9145 states have call successors, (10375) [2022-12-14 09:11:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27828 states to 27828 states and 40276 transitions. [2022-12-14 09:11:55,241 INFO L78 Accepts]: Start accepts. Automaton has 27828 states and 40276 transitions. Word has length 213 [2022-12-14 09:11:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:55,241 INFO L495 AbstractCegarLoop]: Abstraction has 27828 states and 40276 transitions. [2022-12-14 09:11:55,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:11:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 27828 states and 40276 transitions. [2022-12-14 09:11:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-14 09:11:55,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:55,246 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:11:55,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-14 09:11:55,247 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:11:55,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash 415465478, now seen corresponding path program 1 times [2022-12-14 09:11:55,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:55,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734492087] [2022-12-14 09:11:55,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:11:55,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:55,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734492087] [2022-12-14 09:11:55,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734492087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:55,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:55,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:11:55,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992526870] [2022-12-14 09:11:55,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:55,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:11:55,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:11:55,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:11:55,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:11:55,758 INFO L87 Difference]: Start difference. First operand 27828 states and 40276 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2022-12-14 09:12:04,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:06,446 INFO L93 Difference]: Finished difference Result 56847 states and 82761 transitions. [2022-12-14 09:12:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:12:06,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 206 [2022-12-14 09:12:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:06,535 INFO L225 Difference]: With dead ends: 56847 [2022-12-14 09:12:06,535 INFO L226 Difference]: Without dead ends: 29588 [2022-12-14 09:12:06,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:12:06,615 INFO L413 NwaCegarLoop]: 4647 mSDtfsCounter, 405 mSDsluCounter, 8816 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 163 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 13463 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:06,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 13463 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1589 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 09:12:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29588 states. [2022-12-14 09:12:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29588 to 28324. [2022-12-14 09:12:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28324 states, 16803 states have (on average 1.2684639647681961) internal successors, (21314), 17141 states have internal predecessors, (21314), 9163 states have call successors, (9163), 2353 states have call predecessors, (9163), 2351 states have return successors, (10415), 9054 states have call predecessors, (10415), 9161 states have call successors, (10415) [2022-12-14 09:12:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28324 states to 28324 states and 40892 transitions. [2022-12-14 09:12:10,269 INFO L78 Accepts]: Start accepts. Automaton has 28324 states and 40892 transitions. Word has length 206 [2022-12-14 09:12:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:10,269 INFO L495 AbstractCegarLoop]: Abstraction has 28324 states and 40892 transitions. [2022-12-14 09:12:10,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2022-12-14 09:12:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 28324 states and 40892 transitions. [2022-12-14 09:12:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-14 09:12:10,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:10,275 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:12:10,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 09:12:10,275 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:12:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:10,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2030202600, now seen corresponding path program 1 times [2022-12-14 09:12:10,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:10,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161142684] [2022-12-14 09:12:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:10,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:12:10,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:10,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161142684] [2022-12-14 09:12:10,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161142684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:10,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:10,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:12:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724361764] [2022-12-14 09:12:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:10,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:12:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:12:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:12:10,830 INFO L87 Difference]: Start difference. First operand 28324 states and 40892 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2022-12-14 09:12:22,046 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 [] [2022-12-14 09:12:24,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:25,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:27,365 INFO L93 Difference]: Finished difference Result 28346 states and 40911 transitions. [2022-12-14 09:12:27,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:12:27,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 218 [2022-12-14 09:12:27,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:27,437 INFO L225 Difference]: With dead ends: 28346 [2022-12-14 09:12:27,437 INFO L226 Difference]: Without dead ends: 28344 [2022-12-14 09:12:27,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:12:27,446 INFO L413 NwaCegarLoop]: 5053 mSDtfsCounter, 814 mSDsluCounter, 14479 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 19532 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:27,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 19532 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2144 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 09:12:27,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28344 states. [2022-12-14 09:12:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28344 to 28340. [2022-12-14 09:12:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28340 states, 16815 states have (on average 1.2680344930121914) internal successors, (21322), 17153 states have internal predecessors, (21322), 9163 states have call successors, (9163), 2357 states have call predecessors, (9163), 2355 states have return successors, (10415), 9054 states have call predecessors, (10415), 9161 states have call successors, (10415) [2022-12-14 09:12:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28340 states to 28340 states and 40900 transitions. [2022-12-14 09:12:31,293 INFO L78 Accepts]: Start accepts. Automaton has 28340 states and 40900 transitions. Word has length 218 [2022-12-14 09:12:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:31,294 INFO L495 AbstractCegarLoop]: Abstraction has 28340 states and 40900 transitions. [2022-12-14 09:12:31,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2022-12-14 09:12:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 28340 states and 40900 transitions. [2022-12-14 09:12:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-12-14 09:12:31,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:31,302 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:31,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 09:12:31,302 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:12:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -94408815, now seen corresponding path program 1 times [2022-12-14 09:12:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:31,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751724237] [2022-12-14 09:12:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:31,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-14 09:12:31,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:31,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751724237] [2022-12-14 09:12:31,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751724237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:31,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:31,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:12:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749837422] [2022-12-14 09:12:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:31,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:12:31,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:12:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:12:31,577 INFO L87 Difference]: Start difference. First operand 28340 states and 40900 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 09:12:39,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:41,448 INFO L93 Difference]: Finished difference Result 56729 states and 81990 transitions. [2022-12-14 09:12:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:12:41,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 255 [2022-12-14 09:12:41,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,532 INFO L225 Difference]: With dead ends: 56729 [2022-12-14 09:12:41,532 INFO L226 Difference]: Without dead ends: 28408 [2022-12-14 09:12:41,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:12:41,600 INFO L413 NwaCegarLoop]: 4525 mSDtfsCounter, 6 mSDsluCounter, 9034 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13559 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13559 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1418 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 09:12:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28408 states. [2022-12-14 09:12:45,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28408 to 28360. [2022-12-14 09:12:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28360 states, 16831 states have (on average 1.2677796922345672) internal successors, (21338), 17165 states have internal predecessors, (21338), 9167 states have call successors, (9167), 2357 states have call predecessors, (9167), 2355 states have return successors, (10423), 9062 states have call predecessors, (10423), 9165 states have call successors, (10423) [2022-12-14 09:12:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28360 states to 28360 states and 40928 transitions. [2022-12-14 09:12:45,253 INFO L78 Accepts]: Start accepts. Automaton has 28360 states and 40928 transitions. Word has length 255 [2022-12-14 09:12:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:45,254 INFO L495 AbstractCegarLoop]: Abstraction has 28360 states and 40928 transitions. [2022-12-14 09:12:45,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 09:12:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 28360 states and 40928 transitions. [2022-12-14 09:12:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 09:12:45,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:45,260 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:12:45,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-14 09:12:45,260 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:12:45,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:45,260 INFO L85 PathProgramCache]: Analyzing trace with hash 85627702, now seen corresponding path program 1 times [2022-12-14 09:12:45,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:45,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251577050] [2022-12-14 09:12:45,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:45,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:12:45,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:45,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251577050] [2022-12-14 09:12:45,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251577050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:45,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:45,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:12:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655960020] [2022-12-14 09:12:45,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:45,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:12:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:12:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:12:45,954 INFO L87 Difference]: Start difference. First operand 28360 states and 40928 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:12:53,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:55,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:57,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:12:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:58,994 INFO L93 Difference]: Finished difference Result 28636 states and 41182 transitions. [2022-12-14 09:12:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:12:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 229 [2022-12-14 09:12:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:59,067 INFO L225 Difference]: With dead ends: 28636 [2022-12-14 09:12:59,067 INFO L226 Difference]: Without dead ends: 28634 [2022-12-14 09:12:59,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:12:59,077 INFO L413 NwaCegarLoop]: 4525 mSDtfsCounter, 4631 mSDsluCounter, 9292 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4636 SdHoareTripleChecker+Valid, 13817 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:59,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4636 Valid, 13817 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1466 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 09:12:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28634 states. [2022-12-14 09:13:02,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28634 to 28632. [2022-12-14 09:13:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 17003 states have (on average 1.2676586484737988) internal successors, (21554), 17349 states have internal predecessors, (21554), 9179 states have call successors, (9179), 2445 states have call predecessors, (9179), 2443 states have return successors, (10435), 9074 states have call predecessors, (10435), 9177 states have call successors, (10435) [2022-12-14 09:13:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 41168 transitions. [2022-12-14 09:13:02,827 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 41168 transitions. Word has length 229 [2022-12-14 09:13:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:02,827 INFO L495 AbstractCegarLoop]: Abstraction has 28632 states and 41168 transitions. [2022-12-14 09:13:02,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:13:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 41168 transitions. [2022-12-14 09:13:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 09:13:02,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:02,833 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:02,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-14 09:13:02,833 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:13:02,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:02,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2019735623, now seen corresponding path program 1 times [2022-12-14 09:13:02,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:02,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820715355] [2022-12-14 09:13:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:02,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-14 09:13:03,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:03,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820715355] [2022-12-14 09:13:03,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820715355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:03,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:03,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:13:03,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976504153] [2022-12-14 09:13:03,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:03,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:13:03,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:03,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:13:03,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:13:03,430 INFO L87 Difference]: Start difference. First operand 28632 states and 41168 transitions. Second operand has 9 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 09:13:17,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:19,324 INFO L93 Difference]: Finished difference Result 57349 states and 82638 transitions. [2022-12-14 09:13:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:13:19,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) Word has length 263 [2022-12-14 09:13:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:19,411 INFO L225 Difference]: With dead ends: 57349 [2022-12-14 09:13:19,411 INFO L226 Difference]: Without dead ends: 28736 [2022-12-14 09:13:19,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:13:19,483 INFO L413 NwaCegarLoop]: 4525 mSDtfsCounter, 5 mSDsluCounter, 31639 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 36164 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:19,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 36164 Invalid, 3809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3806 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 09:13:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28736 states. [2022-12-14 09:13:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28736 to 28664. [2022-12-14 09:13:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28664 states, 17023 states have (on average 1.267344181401633) internal successors, (21574), 17369 states have internal predecessors, (21574), 9179 states have call successors, (9179), 2445 states have call predecessors, (9179), 2455 states have return successors, (10535), 9086 states have call predecessors, (10535), 9177 states have call successors, (10535) [2022-12-14 09:13:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28664 states to 28664 states and 41288 transitions. [2022-12-14 09:13:23,234 INFO L78 Accepts]: Start accepts. Automaton has 28664 states and 41288 transitions. Word has length 263 [2022-12-14 09:13:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:23,235 INFO L495 AbstractCegarLoop]: Abstraction has 28664 states and 41288 transitions. [2022-12-14 09:13:23,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 09:13:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 28664 states and 41288 transitions. [2022-12-14 09:13:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-12-14 09:13:23,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:23,243 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-12-14 09:13:23,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-14 09:13:23,243 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:13:23,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash 716431417, now seen corresponding path program 1 times [2022-12-14 09:13:23,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334825288] [2022-12-14 09:13:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-12-14 09:13:23,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:23,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334825288] [2022-12-14 09:13:23,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334825288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:23,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:23,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:13:23,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389970603] [2022-12-14 09:13:23,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:23,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:13:23,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:23,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:13:23,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:13:23,533 INFO L87 Difference]: Start difference. First operand 28664 states and 41288 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 09:13:32,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:34,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:36,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:38,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:40,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:42,499 INFO L93 Difference]: Finished difference Result 56839 states and 82039 transitions. [2022-12-14 09:13:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:13:42,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 250 [2022-12-14 09:13:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:42,585 INFO L225 Difference]: With dead ends: 56839 [2022-12-14 09:13:42,586 INFO L226 Difference]: Without dead ends: 28744 [2022-12-14 09:13:42,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:13:42,657 INFO L413 NwaCegarLoop]: 4519 mSDtfsCounter, 22 mSDsluCounter, 18017 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 22536 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:42,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 22536 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2373 Invalid, 4 Unknown, 0 Unchecked, 15.1s Time] [2022-12-14 09:13:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28744 states. [2022-12-14 09:13:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28744 to 28728. [2022-12-14 09:13:46,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28728 states, 17063 states have (on average 1.2667174588290453) internal successors, (21614), 17409 states have internal predecessors, (21614), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9110 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:13:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28728 states to 28728 states and 41472 transitions. [2022-12-14 09:13:46,416 INFO L78 Accepts]: Start accepts. Automaton has 28728 states and 41472 transitions. Word has length 250 [2022-12-14 09:13:46,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:46,417 INFO L495 AbstractCegarLoop]: Abstraction has 28728 states and 41472 transitions. [2022-12-14 09:13:46,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 09:13:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 28728 states and 41472 transitions. [2022-12-14 09:13:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 09:13:46,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:46,423 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:13:46,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-14 09:13:46,423 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:13:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:46,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1660039054, now seen corresponding path program 1 times [2022-12-14 09:13:46,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:46,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562442875] [2022-12-14 09:13:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:46,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:13:46,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:46,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562442875] [2022-12-14 09:13:46,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562442875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:46,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:46,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:13:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751010321] [2022-12-14 09:13:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:46,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:13:46,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:46,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:13:46,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:46,623 INFO L87 Difference]: Start difference. First operand 28728 states and 41472 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 09:13:53,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:13:55,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:55,369 INFO L93 Difference]: Finished difference Result 57087 states and 82580 transitions. [2022-12-14 09:13:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:13:55,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 227 [2022-12-14 09:13:55,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:55,457 INFO L225 Difference]: With dead ends: 57087 [2022-12-14 09:13:55,457 INFO L226 Difference]: Without dead ends: 28928 [2022-12-14 09:13:55,528 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 [2022-12-14 09:13:55,528 INFO L413 NwaCegarLoop]: 4529 mSDtfsCounter, 25 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 8985 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:55,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 8985 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 998 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:13:55,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28928 states. [2022-12-14 09:13:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28928 to 28736. [2022-12-14 09:13:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28736 states, 17071 states have (on average 1.2665924667564876) internal successors, (21622), 17417 states have internal predecessors, (21622), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9110 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:13:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28736 states to 28736 states and 41480 transitions. [2022-12-14 09:13:59,361 INFO L78 Accepts]: Start accepts. Automaton has 28736 states and 41480 transitions. Word has length 227 [2022-12-14 09:13:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:59,362 INFO L495 AbstractCegarLoop]: Abstraction has 28736 states and 41480 transitions. [2022-12-14 09:13:59,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 09:13:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 28736 states and 41480 transitions. [2022-12-14 09:13:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-12-14 09:13:59,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:59,368 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:13:59,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 09:13:59,368 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:13:59,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1252283572, now seen corresponding path program 1 times [2022-12-14 09:13:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:59,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646634955] [2022-12-14 09:13:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:13:59,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:59,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646634955] [2022-12-14 09:13:59,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646634955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:59,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:59,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:13:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17320111] [2022-12-14 09:13:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:13:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:59,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:13:59,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:13:59,846 INFO L87 Difference]: Start difference. First operand 28736 states and 41480 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:11,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:14:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:13,535 INFO L93 Difference]: Finished difference Result 56885 states and 82530 transitions. [2022-12-14 09:14:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:14:13,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 216 [2022-12-14 09:14:13,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:13,624 INFO L225 Difference]: With dead ends: 56885 [2022-12-14 09:14:13,624 INFO L226 Difference]: Without dead ends: 28718 [2022-12-14 09:14:13,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:14:13,698 INFO L413 NwaCegarLoop]: 4509 mSDtfsCounter, 4905 mSDsluCounter, 11061 mSDsCounter, 0 mSdLazyCounter, 4346 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4913 SdHoareTripleChecker+Valid, 15570 SdHoareTripleChecker+Invalid, 4347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:13,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4913 Valid, 15570 Invalid, 4347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4346 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-12-14 09:14:13,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28718 states. [2022-12-14 09:14:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28718 to 28718. [2022-12-14 09:14:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28718 states, 17054 states have (on average 1.2659200187639263) internal successors, (21589), 17399 states have internal predecessors, (21589), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9110 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:14:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28718 states to 28718 states and 41447 transitions. [2022-12-14 09:14:17,742 INFO L78 Accepts]: Start accepts. Automaton has 28718 states and 41447 transitions. Word has length 216 [2022-12-14 09:14:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:17,743 INFO L495 AbstractCegarLoop]: Abstraction has 28718 states and 41447 transitions. [2022-12-14 09:14:17,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 28718 states and 41447 transitions. [2022-12-14 09:14:17,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 09:14:17,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:17,749 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:14:17,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 09:14:17,749 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:14:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:17,750 INFO L85 PathProgramCache]: Analyzing trace with hash 166459100, now seen corresponding path program 1 times [2022-12-14 09:14:17,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:17,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432218854] [2022-12-14 09:14:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:17,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 09:14:18,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:18,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432218854] [2022-12-14 09:14:18,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432218854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:18,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:18,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:14:18,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392549650] [2022-12-14 09:14:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:18,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:14:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:14:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:14:18,124 INFO L87 Difference]: Start difference. First operand 28718 states and 41447 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:24,858 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 [] [2022-12-14 09:14:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:26,557 INFO L93 Difference]: Finished difference Result 28718 states and 41447 transitions. [2022-12-14 09:14:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:14:26,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 217 [2022-12-14 09:14:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:26,628 INFO L225 Difference]: With dead ends: 28718 [2022-12-14 09:14:26,628 INFO L226 Difference]: Without dead ends: 28716 [2022-12-14 09:14:26,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:14:26,637 INFO L413 NwaCegarLoop]: 4506 mSDtfsCounter, 4898 mSDsluCounter, 4507 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 9013 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:26,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 9013 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 943 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:14:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28716 states. [2022-12-14 09:14:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28716 to 28716. [2022-12-14 09:14:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28716 states, 17053 states have (on average 1.265466486835161) internal successors, (21580), 17397 states have internal predecessors, (21580), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9110 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:14:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28716 states to 28716 states and 41438 transitions. [2022-12-14 09:14:30,407 INFO L78 Accepts]: Start accepts. Automaton has 28716 states and 41438 transitions. Word has length 217 [2022-12-14 09:14:30,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:30,408 INFO L495 AbstractCegarLoop]: Abstraction has 28716 states and 41438 transitions. [2022-12-14 09:14:30,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:30,408 INFO L276 IsEmpty]: Start isEmpty. Operand 28716 states and 41438 transitions. [2022-12-14 09:14:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 09:14:30,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:30,414 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:14:30,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-14 09:14:30,414 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:14:30,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 171947422, now seen corresponding path program 1 times [2022-12-14 09:14:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947482031] [2022-12-14 09:14:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-12-14 09:14:30,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:30,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947482031] [2022-12-14 09:14:30,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947482031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:30,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:30,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:14:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288996802] [2022-12-14 09:14:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:30,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:14:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:30,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:14:30,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:14:30,689 INFO L87 Difference]: Start difference. First operand 28716 states and 41438 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:41,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:14:43,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:43,531 INFO L93 Difference]: Finished difference Result 56879 states and 82211 transitions. [2022-12-14 09:14:43,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:14:43,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 230 [2022-12-14 09:14:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:43,620 INFO L225 Difference]: With dead ends: 56879 [2022-12-14 09:14:43,620 INFO L226 Difference]: Without dead ends: 28732 [2022-12-14 09:14:43,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:14:43,692 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 1 mSDsluCounter, 17999 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22506 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:43,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22506 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2387 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 09:14:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28732 states. [2022-12-14 09:14:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28732 to 28732. [2022-12-14 09:14:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28732 states, 17069 states have (on average 1.2652176460249576) internal successors, (21596), 17405 states have internal predecessors, (21596), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9118 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:14:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28732 states to 28732 states and 41454 transitions. [2022-12-14 09:14:47,503 INFO L78 Accepts]: Start accepts. Automaton has 28732 states and 41454 transitions. Word has length 230 [2022-12-14 09:14:47,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:47,503 INFO L495 AbstractCegarLoop]: Abstraction has 28732 states and 41454 transitions. [2022-12-14 09:14:47,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:14:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 28732 states and 41454 transitions. [2022-12-14 09:14:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-14 09:14:47,510 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:47,510 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:47,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-14 09:14:47,511 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:14:47,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:47,511 INFO L85 PathProgramCache]: Analyzing trace with hash -68188611, now seen corresponding path program 1 times [2022-12-14 09:14:47,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:47,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852962944] [2022-12-14 09:14:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:47,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-12-14 09:14:48,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:48,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852962944] [2022-12-14 09:14:48,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852962944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:48,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:48,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:14:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957128725] [2022-12-14 09:14:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:14:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:14:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:14:48,031 INFO L87 Difference]: Start difference. First operand 28732 states and 41454 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-12-14 09:14:56,766 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 [] [2022-12-14 09:14:58,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:58,496 INFO L93 Difference]: Finished difference Result 28734 states and 41455 transitions. [2022-12-14 09:14:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:14:58,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 241 [2022-12-14 09:14:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:58,573 INFO L225 Difference]: With dead ends: 28734 [2022-12-14 09:14:58,573 INFO L226 Difference]: Without dead ends: 28732 [2022-12-14 09:14:58,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:14:58,583 INFO L413 NwaCegarLoop]: 4514 mSDtfsCounter, 280 mSDsluCounter, 13288 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 17802 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:58,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 17802 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1882 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 09:14:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28732 states. [2022-12-14 09:15:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28732 to 28732. [2022-12-14 09:15:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28732 states, 17069 states have (on average 1.2645146171421875) internal successors, (21584), 17405 states have internal predecessors, (21584), 9195 states have call successors, (9195), 2445 states have call predecessors, (9195), 2463 states have return successors, (10663), 9118 states have call predecessors, (10663), 9193 states have call successors, (10663) [2022-12-14 09:15:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28732 states to 28732 states and 41442 transitions. [2022-12-14 09:15:02,358 INFO L78 Accepts]: Start accepts. Automaton has 28732 states and 41442 transitions. Word has length 241 [2022-12-14 09:15:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:02,358 INFO L495 AbstractCegarLoop]: Abstraction has 28732 states and 41442 transitions. [2022-12-14 09:15:02,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-12-14 09:15:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 28732 states and 41442 transitions. [2022-12-14 09:15:02,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-14 09:15:02,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:02,365 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 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] [2022-12-14 09:15:02,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-14 09:15:02,366 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 09:15:02,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash 516932542, now seen corresponding path program 1 times [2022-12-14 09:15:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:02,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008344053] [2022-12-14 09:15:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-12-14 09:15:07,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008344053] [2022-12-14 09:15:07,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008344053] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:15:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694610274] [2022-12-14 09:15:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:07,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:15:07,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:15:07,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3efc4edf-3875-49de-bf5c-032ce6b73e86/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:15:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:08,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 3682 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-14 09:15:08,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:15:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-14 09:15:09,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:15:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-12-14 09:15:09,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694610274] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:15:09,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412528499] [2022-12-14 09:15:09,581 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-12-14 09:15:09,581 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:15:09,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:15:09,591 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:15:09,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:15:34,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:15:34,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7