./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/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 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 --- 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 14:19:44,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:19:44,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:19:44,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:19:44,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:19:44,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:19:44,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:19:44,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:19:44,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:19:44,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:19:44,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:19:44,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:19:44,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:19:44,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:19:44,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:19:44,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:19:44,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:19:44,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:19:44,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:19:44,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:19:45,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:19:45,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:19:45,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:19:45,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:19:45,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:19:45,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:19:45,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:19:45,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:19:45,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:19:45,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:19:45,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:19:45,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:19:45,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:19:45,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:19:45,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:19:45,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:19:45,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:19:45,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:19:45,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:19:45,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:19:45,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:19:45,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:19:45,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:19:45,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:19:45,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:19:45,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:19:45,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:19:45,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:19:45,048 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:19:45,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:19:45,049 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:19:45,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:19:45,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:19:45,050 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:19:45,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:19:45,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:19:45,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:19:45,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:19:45,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:19:45,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:19:45,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:19:45,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:19:45,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:19:45,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:19:45,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:19:45,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:19:45,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:19:45,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:19:45,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:19:45,063 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 [2022-12-14 14:19:45,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:19:45,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:19:45,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:19:45,261 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:19:45,261 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:19:45,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-12-14 14:19:47,857 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:19:48,314 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:19:48,315 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-12-14 14:19:48,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/data/36113756b/9715a8bfb113435a8b9131fb0c5be71f/FLAGb1658d7e6 [2022-12-14 14:19:48,369 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/data/36113756b/9715a8bfb113435a8b9131fb0c5be71f [2022-12-14 14:19:48,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:19:48,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:19:48,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:19:48,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:19:48,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:19:48,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:19:48" (1/1) ... [2022-12-14 14:19:48,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f537f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:48, skipping insertion in model container [2022-12-14 14:19:48,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:19:48" (1/1) ... [2022-12-14 14:19:48,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:19:48,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:19:49,296 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:49,301 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:49,307 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:49,329 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:49,329 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 14:19:49,330 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 14:19:49,330 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 14:19:49,393 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 14:19:49,487 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:49,488 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 14:19:49,494 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:49,494 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 14:19:49,530 WARN L623 FunctionHandler]: Unknown extern function ftrace_raw_output_prep [2022-12-14 14:19:49,531 WARN L623 FunctionHandler]: Unknown extern function trace_seq_printf [2022-12-14 14:19:49,537 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:49,538 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:49,539 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:49,540 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:49,598 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,604 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,611 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,619 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,620 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:49,626 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,631 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,637 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,650 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,657 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,678 WARN L623 FunctionHandler]: Unknown extern function decode_bch [2022-12-14 14:19:49,680 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,686 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,719 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,724 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,725 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,726 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,727 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,728 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,729 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,747 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,756 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:19:49,758 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,759 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,764 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,765 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:49,770 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,777 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,797 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,805 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,815 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:19:49,819 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:19:49,837 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:19:49,838 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:19:49,843 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:19:49,847 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,852 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:49,857 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,858 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,858 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,859 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,859 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,863 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:49,867 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,872 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:49,879 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,879 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,880 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,880 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,881 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,881 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,881 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,882 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,882 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,882 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:49,883 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,883 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:49,889 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:49,896 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-12-14 14:19:49,897 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:49,897 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:49,898 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:49,898 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:49,899 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-12-14 14:19:49,904 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-12-14 14:19:49,910 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-12-14 14:19:49,921 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 14:19:49,921 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:49,922 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,922 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,927 WARN L623 FunctionHandler]: Unknown extern function mtd_device_unregister [2022-12-14 14:19:49,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:49,935 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,943 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 14:19:49,944 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:49,945 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:49,951 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:19:49,951 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:49,952 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-12-14 14:19:49,952 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:19:49,953 WARN L623 FunctionHandler]: Unknown extern function init_bch [2022-12-14 14:19:49,965 WARN L623 FunctionHandler]: Unknown extern function mtd_device_parse_register [2022-12-14 14:19:49,965 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 14:19:49,966 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-12-14 14:19:49,970 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-12-14 14:19:49,975 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_probe [2022-12-14 14:19:50,276 WARN L623 FunctionHandler]: Unknown extern function trace_event_raw_init [2022-12-14 14:19:50,276 WARN L623 FunctionHandler]: Unknown extern function ftrace_event_reg [2022-12-14 14:19:50,285 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:50,285 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:50,286 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:50,286 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:50,286 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:50,287 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:50,287 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:50,287 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:50,288 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:50,289 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:50,289 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:50,289 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:50,308 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 14:19:50,309 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:19:50,309 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:19:50,682 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:19:50,858 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:19:51,276 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-12-14 14:19:51,279 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-12-14 14:19:51,280 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-12-14 14:19:51,280 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-12-14 14:19:51,280 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-12-14 14:19:51,281 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-12-14 14:19:51,281 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-12-14 14:19:51,281 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-12-14 14:19:51,281 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-12-14 14:19:51,282 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-12-14 14:19:51,282 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-12-14 14:19:51,282 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-12-14 14:19:51,282 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-12-14 14:19:51,283 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-12-14 14:19:51,283 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-12-14 14:19:51,283 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-12-14 14:19:51,283 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-12-14 14:19:51,284 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-12-14 14:19:51,284 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-12-14 14:19:51,284 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-12-14 14:19:51,284 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-12-14 14:19:51,285 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-12-14 14:19:51,285 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-12-14 14:19:51,285 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-12-14 14:19:51,285 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-12-14 14:19:51,286 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-12-14 14:19:51,286 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-12-14 14:19:51,286 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-12-14 14:19:51,287 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-12-14 14:19:51,287 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-12-14 14:19:51,287 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-12-14 14:19:51,288 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-12-14 14:19:51,288 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-12-14 14:19:51,289 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-12-14 14:19:51,289 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-12-14 14:19:51,289 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-12-14 14:19:51,290 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-12-14 14:19:51,290 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-12-14 14:19:51,290 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-12-14 14:19:51,291 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-12-14 14:19:51,291 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-12-14 14:19:51,291 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-12-14 14:19:51,292 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-12-14 14:19:51,292 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-12-14 14:19:51,292 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-12-14 14:19:51,293 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-12-14 14:19:51,293 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-12-14 14:19:51,293 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-12-14 14:19:51,294 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-12-14 14:19:51,294 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-12-14 14:19:51,294 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-12-14 14:19:51,295 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-12-14 14:19:51,295 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-12-14 14:19:51,295 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-12-14 14:19:51,296 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-12-14 14:19:51,296 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-12-14 14:19:51,296 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-12-14 14:19:51,297 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-12-14 14:19:51,297 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-12-14 14:19:51,297 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-12-14 14:19:51,298 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-12-14 14:19:51,298 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-12-14 14:19:51,299 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-12-14 14:19:51,299 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-12-14 14:19:51,299 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-12-14 14:19:51,300 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-12-14 14:19:51,300 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-12-14 14:19:51,300 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-12-14 14:19:51,301 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-12-14 14:19:51,301 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-12-14 14:19:51,301 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-12-14 14:19:51,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-12-14 14:19:51,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-12-14 14:19:51,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-12-14 14:19:51,303 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-12-14 14:19:51,303 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-12-14 14:19:51,303 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-12-14 14:19:51,304 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-12-14 14:19:51,304 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-12-14 14:19:51,304 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-12-14 14:19:51,305 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-12-14 14:19:51,305 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-12-14 14:19:51,305 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-12-14 14:19:51,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-12-14 14:19:51,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-12-14 14:19:51,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-12-14 14:19:51,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-12-14 14:19:51,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-12-14 14:19:51,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:19:51,356 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:19:51,447 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:51,448 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:51,449 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:19:51,450 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:51,450 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 14:19:51,451 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 14:19:51,451 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 14:19:51,452 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 14:19:51,454 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:51,455 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 14:19:51,456 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 14:19:51,457 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 14:19:51,459 WARN L623 FunctionHandler]: Unknown extern function ftrace_raw_output_prep [2022-12-14 14:19:51,459 WARN L623 FunctionHandler]: Unknown extern function trace_seq_printf [2022-12-14 14:19:51,460 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:51,461 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:51,462 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:51,462 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-12-14 14:19:51,469 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,471 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,474 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,478 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:51,481 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,482 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,483 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,486 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,488 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,490 WARN L623 FunctionHandler]: Unknown extern function decode_bch [2022-12-14 14:19:51,492 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,494 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,501 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,505 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,506 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,508 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,508 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,509 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,510 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,516 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,518 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:19:51,519 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,520 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,522 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,522 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:51,523 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,526 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,531 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,535 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,537 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:19:51,537 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:19:51,545 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:19:51,546 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:19:51,547 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:19:51,548 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,549 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:51,551 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,551 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,552 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,552 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,552 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,553 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:51,554 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,554 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:51,555 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,556 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,556 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,556 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,556 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,557 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,557 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,557 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,558 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,558 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 14:19:51,558 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,558 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 14:19:51,559 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 14:19:51,559 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-12-14 14:19:51,560 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:51,560 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:51,560 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:51,561 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 14:19:51,561 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-12-14 14:19:51,561 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-12-14 14:19:51,562 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-12-14 14:19:51,572 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 14:19:51,573 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:51,573 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,573 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,574 WARN L623 FunctionHandler]: Unknown extern function mtd_device_unregister [2022-12-14 14:19:51,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:19:51,576 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,578 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 14:19:51,579 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:19:51,579 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:51,580 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:19:51,580 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:19:51,580 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-12-14 14:19:51,581 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:19:51,581 WARN L623 FunctionHandler]: Unknown extern function init_bch [2022-12-14 14:19:51,581 WARN L623 FunctionHandler]: Unknown extern function mtd_device_parse_register [2022-12-14 14:19:51,582 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 14:19:51,582 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-12-14 14:19:51,584 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-12-14 14:19:51,584 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_probe [2022-12-14 14:19:51,589 WARN L623 FunctionHandler]: Unknown extern function trace_event_raw_init [2022-12-14 14:19:51,589 WARN L623 FunctionHandler]: Unknown extern function ftrace_event_reg [2022-12-14 14:19:51,596 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:51,596 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:51,597 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:51,597 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:51,597 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:51,597 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:51,598 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 14:19:51,598 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 14:19:51,598 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:51,599 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:51,599 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:51,599 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 14:19:51,637 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 14:19:51,638 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:19:51,638 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:19:51,650 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:19:51,657 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:19:51,669 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-12-14 14:19:51,670 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-12-14 14:19:51,670 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-12-14 14:19:51,671 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-12-14 14:19:51,671 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-12-14 14:19:51,671 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-12-14 14:19:51,672 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-12-14 14:19:51,672 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-12-14 14:19:51,672 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-12-14 14:19:51,673 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-12-14 14:19:51,673 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-12-14 14:19:51,673 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-12-14 14:19:51,674 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-12-14 14:19:51,674 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-12-14 14:19:51,674 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-12-14 14:19:51,675 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-12-14 14:19:51,675 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-12-14 14:19:51,675 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-12-14 14:19:51,675 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-12-14 14:19:51,675 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-12-14 14:19:51,676 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-12-14 14:19:51,676 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-12-14 14:19:51,676 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-12-14 14:19:51,676 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-12-14 14:19:51,676 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-12-14 14:19:51,677 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-12-14 14:19:51,677 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-12-14 14:19:51,677 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-12-14 14:19:51,677 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-12-14 14:19:51,677 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-12-14 14:19:51,678 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-12-14 14:19:51,678 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-12-14 14:19:51,678 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-12-14 14:19:51,678 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-12-14 14:19:51,678 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-12-14 14:19:51,679 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-12-14 14:19:51,679 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-12-14 14:19:51,679 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-12-14 14:19:51,679 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-12-14 14:19:51,679 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-12-14 14:19:51,680 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-12-14 14:19:51,680 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-12-14 14:19:51,680 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-12-14 14:19:51,681 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-12-14 14:19:51,681 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-12-14 14:19:51,681 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-12-14 14:19:51,681 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-12-14 14:19:51,681 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-12-14 14:19:51,682 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-12-14 14:19:51,682 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-12-14 14:19:51,682 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-12-14 14:19:51,683 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-12-14 14:19:51,683 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-12-14 14:19:51,683 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-12-14 14:19:51,684 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-12-14 14:19:51,684 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-12-14 14:19:51,684 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-12-14 14:19:51,684 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-12-14 14:19:51,685 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-12-14 14:19:51,685 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-12-14 14:19:51,685 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-12-14 14:19:51,686 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-12-14 14:19:51,686 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-12-14 14:19:51,686 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-12-14 14:19:51,687 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-12-14 14:19:51,687 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-12-14 14:19:51,687 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-12-14 14:19:51,688 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-12-14 14:19:51,688 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-12-14 14:19:51,688 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-12-14 14:19:51,688 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-12-14 14:19:51,689 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-12-14 14:19:51,689 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-12-14 14:19:51,689 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-12-14 14:19:51,690 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-12-14 14:19:51,690 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-12-14 14:19:51,690 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-12-14 14:19:51,691 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-12-14 14:19:51,691 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-12-14 14:19:51,691 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-12-14 14:19:51,692 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-12-14 14:19:51,692 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-12-14 14:19:51,692 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-12-14 14:19:51,692 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-12-14 14:19:51,693 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-12-14 14:19:51,693 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-12-14 14:19:51,693 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-12-14 14:19:51,693 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_fb3c1628-1f95-43db-a80d-e75ebf6195bb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-12-14 14:19:51,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:19:51,863 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:19:51,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51 WrapperNode [2022-12-14 14:19:51,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:19:51,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:19:51,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:19:51,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:19:51,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:51,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,052 INFO L138 Inliner]: procedures = 642, calls = 3012, calls flagged for inlining = 308, calls inlined = 202, statements flattened = 4626 [2022-12-14 14:19:52,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:19:52,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:19:52,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:19:52,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:19:52,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:19:52,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:19:52,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:19:52,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:19:52,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (1/1) ... [2022-12-14 14:19:52,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:19:52,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:52,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:19:52,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:19:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_prepare [2022-12-14 14:19:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_prepare [2022-12-14 14:19:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 14:19:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 14:19:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:19:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:19:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writeb [2022-12-14 14:19:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writeb [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writew [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writew [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_ecc_init [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_ecc_init [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-12-14 14:19:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-12-14 14:19:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_pm_ops_instance_6 [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_pm_ops_instance_6 [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_reliable_mode [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_reliable_mode [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_data_area [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_data_area [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure doc_is_ready [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_is_ready [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readw [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readw [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_release [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_release [2022-12-14 14:19:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 14:19:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readb [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readb [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_resume [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_resume [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readw [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readw [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure doc_release_device [2022-12-14 14:19:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_release_device [2022-12-14 14:19:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readb [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readb [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_device_id [2022-12-14 14:19:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_device_id [2022-12-14 14:19:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 14:19:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2022-12-14 14:19:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-12-14 14:19:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2022-12-14 14:19:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:19:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:19:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure doc_delay [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_delay [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_getbytes [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_getbytes [2022-12-14 14:19:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_asic_mode [2022-12-14 14:19:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_asic_mode [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_sequence [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_sequence [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_suspend [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_suspend [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_probe [2022-12-14 14:19:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_probe [2022-12-14 14:19:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 14:19:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 14:19:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure doc_page_finish [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_page_finish [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure doc_reset_seq [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_reset_seq [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_command [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_command [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_finish [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_finish [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-12-14 14:19:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-12-14 14:19:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:19:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 14:19:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_dev2docg3 [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_dev2docg3 [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 14:19:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 14:19:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_address [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_address [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure trace_docg3_io [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_docg3_io [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-12-14 14:19:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-12-14 14:19:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure doc_wait_ready [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_wait_ready [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure free_bch [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bch [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure doc_setup_addr_sector [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_setup_addr_sector [2022-12-14 14:19:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-12-14 14:19:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-12-14 14:19:52,788 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:19:52,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:19:53,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:20:02,230 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:20:02,775 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:20:02,775 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 14:20:02,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:20:02 BoogieIcfgContainer [2022-12-14 14:20:02,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:20:02,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:20:02,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:20:02,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:20:02,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:19:48" (1/3) ... [2022-12-14 14:20:02,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c60f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:20:02, skipping insertion in model container [2022-12-14 14:20:02,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:19:51" (2/3) ... [2022-12-14 14:20:02,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c60f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:20:02, skipping insertion in model container [2022-12-14 14:20:02,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:20:02" (3/3) ... [2022-12-14 14:20:02,786 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-12-14 14:20:02,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:20:02,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-12-14 14:20:02,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:20:02,872 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;@64cf0d3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:20:02,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-14 14:20:02,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 706 states have (on average 1.3172804532577904) internal successors, (930), 778 states have internal predecessors, (930), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 441 states have call predecessors, (452), 452 states have call successors, (452) [2022-12-14 14:20:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 14:20:02,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:02,889 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:02,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 387901661, now seen corresponding path program 1 times [2022-12-14 14:20:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:02,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886899126] [2022-12-14 14:20:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:03,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:03,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886899126] [2022-12-14 14:20:03,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886899126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:03,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:03,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:03,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926087891] [2022-12-14 14:20:03,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:03,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:03,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:03,692 INFO L87 Difference]: Start difference. First operand has 1290 states, 706 states have (on average 1.3172804532577904) internal successors, (930), 778 states have internal predecessors, (930), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 441 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 14:20:06,674 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 14:20:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:06,908 INFO L93 Difference]: Finished difference Result 2798 states and 4072 transitions. [2022-12-14 14:20:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:06,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2022-12-14 14:20:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:06,926 INFO L225 Difference]: With dead ends: 2798 [2022-12-14 14:20:06,926 INFO L226 Difference]: Without dead ends: 1516 [2022-12-14 14:20:06,935 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 14:20:06,937 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 1537 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:06,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 3823 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 14:20:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-12-14 14:20:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1507. [2022-12-14 14:20:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 840 states have (on average 1.2726190476190475) internal successors, (1069), 912 states have internal predecessors, (1069), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2105 transitions. [2022-12-14 14:20:07,047 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2105 transitions. Word has length 36 [2022-12-14 14:20:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:07,048 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 2105 transitions. [2022-12-14 14:20:07,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 14:20:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2105 transitions. [2022-12-14 14:20:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 14:20:07,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:07,049 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:07,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:20:07,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:07,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:07,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1301859419, now seen corresponding path program 1 times [2022-12-14 14:20:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:07,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57837572] [2022-12-14 14:20:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:07,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:07,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57837572] [2022-12-14 14:20:07,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57837572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:07,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:07,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:07,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909799561] [2022-12-14 14:20:07,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:07,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:07,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:07,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:07,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:07,425 INFO L87 Difference]: Start difference. First operand 1507 states and 2105 transitions. 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 14:20:10,507 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 14:20:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:10,754 INFO L93 Difference]: Finished difference Result 1516 states and 2116 transitions. [2022-12-14 14:20:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:10,755 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2022-12-14 14:20:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:10,761 INFO L225 Difference]: With dead ends: 1516 [2022-12-14 14:20:10,761 INFO L226 Difference]: Without dead ends: 1514 [2022-12-14 14:20:10,762 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 14:20:10,762 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1505 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3761 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:10,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 3761 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 14:20:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-12-14 14:20:10,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1505. [2022-12-14 14:20:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 839 states have (on average 1.2717520858164482) internal successors, (1067), 910 states have internal predecessors, (1067), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2103 transitions. [2022-12-14 14:20:10,825 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2103 transitions. Word has length 41 [2022-12-14 14:20:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:10,825 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2103 transitions. [2022-12-14 14:20:10,825 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 14:20:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2103 transitions. [2022-12-14 14:20:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 14:20:10,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:10,826 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:10,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:20:10,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1778158046, now seen corresponding path program 1 times [2022-12-14 14:20:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:10,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606212532] [2022-12-14 14:20:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:10,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:11,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:11,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606212532] [2022-12-14 14:20:11,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606212532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:11,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:11,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073778854] [2022-12-14 14:20:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:11,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:11,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:11,144 INFO L87 Difference]: Start difference. First operand 1505 states and 2103 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 14:20:14,296 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 14:20:14,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:14,533 INFO L93 Difference]: Finished difference Result 1514 states and 2114 transitions. [2022-12-14 14:20:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:14,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 46 [2022-12-14 14:20:14,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:14,542 INFO L225 Difference]: With dead ends: 1514 [2022-12-14 14:20:14,542 INFO L226 Difference]: Without dead ends: 1512 [2022-12-14 14:20:14,543 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 14:20:14,543 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1502 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:14,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 3757 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 14:20:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-12-14 14:20:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1503. [2022-12-14 14:20:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 838 states have (on average 1.2708830548926013) internal successors, (1065), 908 states have internal predecessors, (1065), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2101 transitions. [2022-12-14 14:20:14,602 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2101 transitions. Word has length 46 [2022-12-14 14:20:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:14,602 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2101 transitions. [2022-12-14 14:20:14,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 14:20:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2101 transitions. [2022-12-14 14:20:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 14:20:14,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:14,603 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:14,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:20:14,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash 897608854, now seen corresponding path program 1 times [2022-12-14 14:20:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372633807] [2022-12-14 14:20:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:14,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:14,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:14,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372633807] [2022-12-14 14:20:14,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372633807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:14,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:14,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:14,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514987009] [2022-12-14 14:20:14,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:14,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:14,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:14,944 INFO L87 Difference]: Start difference. First operand 1503 states and 2101 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, (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 14:20:17,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:20:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:18,144 INFO L93 Difference]: Finished difference Result 1512 states and 2112 transitions. [2022-12-14 14:20:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:18,145 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, (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 51 [2022-12-14 14:20:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:18,151 INFO L225 Difference]: With dead ends: 1512 [2022-12-14 14:20:18,151 INFO L226 Difference]: Without dead ends: 1510 [2022-12-14 14:20:18,152 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 14:20:18,153 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1499 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:18,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3753 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:20:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-12-14 14:20:18,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1501. [2022-12-14 14:20:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 837 states have (on average 1.2700119474313023) internal successors, (1063), 906 states have internal predecessors, (1063), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2099 transitions. [2022-12-14 14:20:18,212 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2099 transitions. Word has length 51 [2022-12-14 14:20:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:18,212 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 2099 transitions. [2022-12-14 14:20:18,212 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, (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 14:20:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2099 transitions. [2022-12-14 14:20:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 14:20:18,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:18,213 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:18,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:20:18,213 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:18,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1232828389, now seen corresponding path program 1 times [2022-12-14 14:20:18,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:18,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711072054] [2022-12-14 14:20:18,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:18,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:18,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711072054] [2022-12-14 14:20:18,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711072054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:18,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:18,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:18,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759072814] [2022-12-14 14:20:18,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:18,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:18,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:18,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:18,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:18,546 INFO L87 Difference]: Start difference. First operand 1501 states and 2099 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 14:20:22,045 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 14:20:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:22,213 INFO L93 Difference]: Finished difference Result 1510 states and 2110 transitions. [2022-12-14 14:20:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 56 [2022-12-14 14:20:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:22,219 INFO L225 Difference]: With dead ends: 1510 [2022-12-14 14:20:22,219 INFO L226 Difference]: Without dead ends: 1508 [2022-12-14 14:20:22,220 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 14:20:22,220 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1496 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:22,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 3749 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 14:20:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-12-14 14:20:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2022-12-14 14:20:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 836 states have (on average 1.2691387559808613) internal successors, (1061), 904 states have internal predecessors, (1061), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2097 transitions. [2022-12-14 14:20:22,286 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2097 transitions. Word has length 56 [2022-12-14 14:20:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:22,286 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2097 transitions. [2022-12-14 14:20:22,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 14:20:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2097 transitions. [2022-12-14 14:20:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 14:20:22,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:22,288 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:22,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:20:22,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1567580593, now seen corresponding path program 1 times [2022-12-14 14:20:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:22,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310883563] [2022-12-14 14:20:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:22,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:22,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310883563] [2022-12-14 14:20:22,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310883563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:22,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:22,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:22,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960136622] [2022-12-14 14:20:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:22,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:22,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:22,591 INFO L87 Difference]: Start difference. First operand 1499 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 14:20:26,072 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 14:20:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:26,274 INFO L93 Difference]: Finished difference Result 1508 states and 2108 transitions. [2022-12-14 14:20:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:26,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 61 [2022-12-14 14:20:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:26,287 INFO L225 Difference]: With dead ends: 1508 [2022-12-14 14:20:26,287 INFO L226 Difference]: Without dead ends: 1506 [2022-12-14 14:20:26,289 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 14:20:26,290 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1493 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:26,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 3745 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 14:20:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2022-12-14 14:20:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1497. [2022-12-14 14:20:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 835 states have (on average 1.2682634730538922) internal successors, (1059), 902 states have internal predecessors, (1059), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2095 transitions. [2022-12-14 14:20:26,408 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2095 transitions. Word has length 61 [2022-12-14 14:20:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:26,408 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2095 transitions. [2022-12-14 14:20:26,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 14:20:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2095 transitions. [2022-12-14 14:20:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 14:20:26,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:26,410 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:26,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:20:26,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:26,410 INFO L85 PathProgramCache]: Analyzing trace with hash 801085262, now seen corresponding path program 1 times [2022-12-14 14:20:26,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:26,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755559914] [2022-12-14 14:20:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:26,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:26,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:26,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755559914] [2022-12-14 14:20:26,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755559914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:26,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:26,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744226516] [2022-12-14 14:20:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:26,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:26,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:26,718 INFO L87 Difference]: Start difference. First operand 1497 states and 2095 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 14:20:29,804 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 14:20:29,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:29,976 INFO L93 Difference]: Finished difference Result 1506 states and 2106 transitions. [2022-12-14 14:20:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:29,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 66 [2022-12-14 14:20:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:29,984 INFO L225 Difference]: With dead ends: 1506 [2022-12-14 14:20:29,984 INFO L226 Difference]: Without dead ends: 1504 [2022-12-14 14:20:29,985 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 14:20:29,985 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1490 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:29,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3741 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 14:20:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-12-14 14:20:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1495. [2022-12-14 14:20:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 834 states have (on average 1.2673860911270982) internal successors, (1057), 900 states have internal predecessors, (1057), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2093 transitions. [2022-12-14 14:20:30,051 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2093 transitions. Word has length 66 [2022-12-14 14:20:30,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:30,051 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2093 transitions. [2022-12-14 14:20:30,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 14:20:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2093 transitions. [2022-12-14 14:20:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 14:20:30,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:30,052 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:30,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:20:30,053 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:30,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:30,053 INFO L85 PathProgramCache]: Analyzing trace with hash 802628060, now seen corresponding path program 1 times [2022-12-14 14:20:30,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:30,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336128632] [2022-12-14 14:20:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:30,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:30,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:30,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336128632] [2022-12-14 14:20:30,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336128632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:30,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:30,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:30,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866423532] [2022-12-14 14:20:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:30,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:30,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:30,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:30,336 INFO L87 Difference]: Start difference. First operand 1495 states and 2093 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 14:20:33,550 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 14:20:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:33,706 INFO L93 Difference]: Finished difference Result 1504 states and 2104 transitions. [2022-12-14 14:20:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:33,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 71 [2022-12-14 14:20:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:33,712 INFO L225 Difference]: With dead ends: 1504 [2022-12-14 14:20:33,712 INFO L226 Difference]: Without dead ends: 1502 [2022-12-14 14:20:33,712 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 14:20:33,713 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 1491 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:33,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 14:20:33,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-12-14 14:20:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1493. [2022-12-14 14:20:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 833 states have (on average 1.2665066026410565) internal successors, (1055), 898 states have internal predecessors, (1055), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2091 transitions. [2022-12-14 14:20:33,783 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2091 transitions. Word has length 71 [2022-12-14 14:20:33,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:33,783 INFO L495 AbstractCegarLoop]: Abstraction has 1493 states and 2091 transitions. [2022-12-14 14:20:33,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 14:20:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2091 transitions. [2022-12-14 14:20:33,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 14:20:33,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:33,784 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:33,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:20:33,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:33,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:33,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1768403169, now seen corresponding path program 1 times [2022-12-14 14:20:33,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:33,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522411258] [2022-12-14 14:20:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:33,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:34,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:34,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522411258] [2022-12-14 14:20:34,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522411258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:34,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:34,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:34,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804857729] [2022-12-14 14:20:34,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:34,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:34,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:34,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:34,047 INFO L87 Difference]: Start difference. First operand 1493 states and 2091 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 14:20:37,107 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 14:20:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:37,300 INFO L93 Difference]: Finished difference Result 1502 states and 2102 transitions. [2022-12-14 14:20:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:37,300 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 73 [2022-12-14 14:20:37,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:37,305 INFO L225 Difference]: With dead ends: 1502 [2022-12-14 14:20:37,305 INFO L226 Difference]: Without dead ends: 1500 [2022-12-14 14:20:37,305 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 14:20:37,306 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 1483 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:20:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-12-14 14:20:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1491. [2022-12-14 14:20:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 832 states have (on average 1.265625) internal successors, (1053), 896 states have internal predecessors, (1053), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2089 transitions. [2022-12-14 14:20:37,432 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2089 transitions. Word has length 73 [2022-12-14 14:20:37,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:37,432 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2089 transitions. [2022-12-14 14:20:37,432 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 14:20:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2089 transitions. [2022-12-14 14:20:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 14:20:37,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:37,434 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:37,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:20:37,434 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -19306314, now seen corresponding path program 1 times [2022-12-14 14:20:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:37,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632210965] [2022-12-14 14:20:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:37,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:37,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:37,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632210965] [2022-12-14 14:20:37,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632210965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:37,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:37,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199855711] [2022-12-14 14:20:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:37,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:37,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:37,720 INFO L87 Difference]: Start difference. First operand 1491 states and 2089 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 14:20:40,864 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 14:20:41,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:41,042 INFO L93 Difference]: Finished difference Result 1500 states and 2100 transitions. [2022-12-14 14:20:41,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:41,042 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 78 [2022-12-14 14:20:41,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:41,052 INFO L225 Difference]: With dead ends: 1500 [2022-12-14 14:20:41,052 INFO L226 Difference]: Without dead ends: 1498 [2022-12-14 14:20:41,052 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 14:20:41,053 INFO L413 NwaCegarLoop]: 1608 mSDtfsCounter, 1482 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3729 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:41,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3729 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 14:20:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-12-14 14:20:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1489. [2022-12-14 14:20:41,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 831 states have (on average 1.2647412755716005) internal successors, (1051), 894 states have internal predecessors, (1051), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2087 transitions. [2022-12-14 14:20:41,134 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2087 transitions. Word has length 78 [2022-12-14 14:20:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:41,134 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2087 transitions. [2022-12-14 14:20:41,134 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 14:20:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2087 transitions. [2022-12-14 14:20:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 14:20:41,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:41,135 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:41,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:20:41,136 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:41,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:41,136 INFO L85 PathProgramCache]: Analyzing trace with hash 222794087, now seen corresponding path program 1 times [2022-12-14 14:20:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:41,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972361517] [2022-12-14 14:20:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:41,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:41,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:41,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972361517] [2022-12-14 14:20:41,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972361517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:41,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:41,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:41,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947232440] [2022-12-14 14:20:41,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:41,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:41,486 INFO L87 Difference]: Start difference. First operand 1489 states and 2087 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 14:20:44,834 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 14:20:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:45,017 INFO L93 Difference]: Finished difference Result 1498 states and 2098 transitions. [2022-12-14 14:20:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:45,017 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 83 [2022-12-14 14:20:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:45,022 INFO L225 Difference]: With dead ends: 1498 [2022-12-14 14:20:45,022 INFO L226 Difference]: Without dead ends: 1496 [2022-12-14 14:20:45,023 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 14:20:45,023 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1479 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:45,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3725 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:20:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-12-14 14:20:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1487. [2022-12-14 14:20:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 830 states have (on average 1.263855421686747) internal successors, (1049), 892 states have internal predecessors, (1049), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2085 transitions. [2022-12-14 14:20:45,109 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2085 transitions. Word has length 83 [2022-12-14 14:20:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:45,109 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2085 transitions. [2022-12-14 14:20:45,109 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 14:20:45,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2085 transitions. [2022-12-14 14:20:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 14:20:45,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:45,111 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:45,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:20:45,111 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:45,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2073468673, now seen corresponding path program 1 times [2022-12-14 14:20:45,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:45,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731543877] [2022-12-14 14:20:45,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:45,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:45,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:45,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731543877] [2022-12-14 14:20:45,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731543877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:45,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:45,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646300992] [2022-12-14 14:20:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:45,424 INFO L87 Difference]: Start difference. First operand 1487 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 14:20:48,810 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 14:20:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:48,994 INFO L93 Difference]: Finished difference Result 1496 states and 2096 transitions. [2022-12-14 14:20:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:48,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 88 [2022-12-14 14:20:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:48,999 INFO L225 Difference]: With dead ends: 1496 [2022-12-14 14:20:48,999 INFO L226 Difference]: Without dead ends: 1494 [2022-12-14 14:20:48,999 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 14:20:48,999 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1476 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3721 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:49,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 3721 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:20:49,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-12-14 14:20:49,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2022-12-14 14:20:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 829 states have (on average 1.2629674306393246) internal successors, (1047), 890 states have internal predecessors, (1047), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:49,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2083 transitions. [2022-12-14 14:20:49,075 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2083 transitions. Word has length 88 [2022-12-14 14:20:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:49,076 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 2083 transitions. [2022-12-14 14:20:49,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 14:20:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2083 transitions. [2022-12-14 14:20:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 14:20:49,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:49,077 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:49,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:20:49,077 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 501676226, now seen corresponding path program 1 times [2022-12-14 14:20:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:49,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836231314] [2022-12-14 14:20:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:49,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:49,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836231314] [2022-12-14 14:20:49,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836231314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:49,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:49,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:49,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262052259] [2022-12-14 14:20:49,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:49,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:49,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:49,336 INFO L87 Difference]: Start difference. First operand 1485 states and 2083 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:20:52,662 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 14:20:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:52,856 INFO L93 Difference]: Finished difference Result 1494 states and 2094 transitions. [2022-12-14 14:20:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 93 [2022-12-14 14:20:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:52,862 INFO L225 Difference]: With dead ends: 1494 [2022-12-14 14:20:52,862 INFO L226 Difference]: Without dead ends: 1492 [2022-12-14 14:20:52,862 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 14:20:52,863 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1473 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:52,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 3717 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:20:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-12-14 14:20:52,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1483. [2022-12-14 14:20:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 828 states have (on average 1.2620772946859904) internal successors, (1045), 888 states have internal predecessors, (1045), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2081 transitions. [2022-12-14 14:20:52,943 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2081 transitions. Word has length 93 [2022-12-14 14:20:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:52,943 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2081 transitions. [2022-12-14 14:20:52,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:20:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2081 transitions. [2022-12-14 14:20:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 14:20:52,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:52,944 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 2, 2, 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] [2022-12-14 14:20:52,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:20:52,944 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:52,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:52,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2013752884, now seen corresponding path program 1 times [2022-12-14 14:20:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:52,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375213114] [2022-12-14 14:20:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-12-14 14:20:53,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:53,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375213114] [2022-12-14 14:20:53,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375213114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:53,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:53,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:20:53,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393824602] [2022-12-14 14:20:53,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:53,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:20:53,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:53,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:20:53,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:20:53,279 INFO L87 Difference]: Start difference. First operand 1483 states and 2081 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 14:20:56,029 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 14:20:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:56,223 INFO L93 Difference]: Finished difference Result 2930 states and 4099 transitions. [2022-12-14 14:20:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:20:56,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2022-12-14 14:20:56,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:56,229 INFO L225 Difference]: With dead ends: 2930 [2022-12-14 14:20:56,229 INFO L226 Difference]: Without dead ends: 1488 [2022-12-14 14:20:56,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 14:20:56,234 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1483 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:56,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 2111 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 14:20:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-12-14 14:20:56,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1479. [2022-12-14 14:20:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 825 states have (on average 1.2606060606060605) internal successors, (1040), 884 states have internal predecessors, (1040), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2076 transitions. [2022-12-14 14:20:56,327 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2076 transitions. Word has length 106 [2022-12-14 14:20:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 2076 transitions. [2022-12-14 14:20:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 14:20:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2076 transitions. [2022-12-14 14:20:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 14:20:56,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:56,328 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:56,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:20:56,329 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:56,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:56,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1690483325, now seen corresponding path program 1 times [2022-12-14 14:20:56,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:56,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87409826] [2022-12-14 14:20:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:56,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:20:56,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:56,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87409826] [2022-12-14 14:20:56,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87409826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:56,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:56,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:20:56,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962028506] [2022-12-14 14:20:56,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:56,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:20:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:20:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:20:56,623 INFO L87 Difference]: Start difference. First operand 1479 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 14:20:59,625 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 14:20:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:59,812 INFO L93 Difference]: Finished difference Result 1488 states and 2087 transitions. [2022-12-14 14:20:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:20:59,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 98 [2022-12-14 14:20:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:59,817 INFO L225 Difference]: With dead ends: 1488 [2022-12-14 14:20:59,817 INFO L226 Difference]: Without dead ends: 1486 [2022-12-14 14:20:59,818 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 14:20:59,818 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1465 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:59,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 3703 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 14:20:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-12-14 14:20:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1477. [2022-12-14 14:20:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 824 states have (on average 1.2597087378640777) internal successors, (1038), 882 states have internal predecessors, (1038), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:20:59,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2074 transitions. [2022-12-14 14:20:59,905 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2074 transitions. Word has length 98 [2022-12-14 14:20:59,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:59,906 INFO L495 AbstractCegarLoop]: Abstraction has 1477 states and 2074 transitions. [2022-12-14 14:20:59,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 14:20:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2074 transitions. [2022-12-14 14:20:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 14:20:59,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:59,907 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:20:59,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:20:59,907 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:20:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1101470115, now seen corresponding path program 1 times [2022-12-14 14:20:59,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:59,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323469249] [2022-12-14 14:20:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:00,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:00,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323469249] [2022-12-14 14:21:00,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323469249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:00,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:00,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923952070] [2022-12-14 14:21:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:00,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:00,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:00,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:00,182 INFO L87 Difference]: Start difference. First operand 1477 states and 2074 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 14:21:03,266 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 14:21:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:03,459 INFO L93 Difference]: Finished difference Result 1486 states and 2085 transitions. [2022-12-14 14:21:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 103 [2022-12-14 14:21:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:03,464 INFO L225 Difference]: With dead ends: 1486 [2022-12-14 14:21:03,464 INFO L226 Difference]: Without dead ends: 1484 [2022-12-14 14:21:03,465 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 14:21:03,465 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1462 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:03,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 3699 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:21:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-12-14 14:21:03,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1475. [2022-12-14 14:21:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 823 states have (on average 1.2588092345078978) internal successors, (1036), 880 states have internal predecessors, (1036), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2072 transitions. [2022-12-14 14:21:03,562 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2072 transitions. Word has length 103 [2022-12-14 14:21:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:03,562 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2072 transitions. [2022-12-14 14:21:03,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 14:21:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2072 transitions. [2022-12-14 14:21:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 14:21:03,563 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:03,563 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 2, 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] [2022-12-14 14:21:03,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:21:03,564 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1899218894, now seen corresponding path program 1 times [2022-12-14 14:21:03,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:03,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732534434] [2022-12-14 14:21:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:03,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-14 14:21:03,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:03,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732534434] [2022-12-14 14:21:03,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732534434] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:21:03,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159075362] [2022-12-14 14:21:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:03,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:03,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:03,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:03,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:21:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:04,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 3629 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:21:04,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-12-14 14:21:04,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:21:04,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159075362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:04,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:21:04,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-14 14:21:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256995456] [2022-12-14 14:21:04,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:21:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:21:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:21:04,749 INFO L87 Difference]: Start difference. First operand 1475 states and 2072 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:21:07,392 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 14:21:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:07,555 INFO L93 Difference]: Finished difference Result 2914 states and 4081 transitions. [2022-12-14 14:21:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:21:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2022-12-14 14:21:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:07,561 INFO L225 Difference]: With dead ends: 2914 [2022-12-14 14:21:07,561 INFO L226 Difference]: Without dead ends: 1480 [2022-12-14 14:21:07,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:21:07,565 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1451 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:07,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2102 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 14:21:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-12-14 14:21:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1471. [2022-12-14 14:21:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 820 states have (on average 1.2573170731707317) internal successors, (1031), 876 states have internal predecessors, (1031), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2067 transitions. [2022-12-14 14:21:07,688 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2067 transitions. Word has length 114 [2022-12-14 14:21:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:07,688 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 2067 transitions. [2022-12-14 14:21:07,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:21:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2067 transitions. [2022-12-14 14:21:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 14:21:07,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:07,689 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-12-14 14:21:07,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:21:07,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:07,890 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:07,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1957460741, now seen corresponding path program 1 times [2022-12-14 14:21:07,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:07,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852996522] [2022-12-14 14:21:07,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:07,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:08,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:08,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852996522] [2022-12-14 14:21:08,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852996522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:08,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:08,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9019147] [2022-12-14 14:21:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:08,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:08,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:08,563 INFO L87 Difference]: Start difference. First operand 1471 states and 2067 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 14:21:11,982 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 14:21:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:12,160 INFO L93 Difference]: Finished difference Result 1480 states and 2078 transitions. [2022-12-14 14:21:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:12,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 108 [2022-12-14 14:21:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:12,166 INFO L225 Difference]: With dead ends: 1480 [2022-12-14 14:21:12,166 INFO L226 Difference]: Without dead ends: 1478 [2022-12-14 14:21:12,166 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 14:21:12,167 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 1454 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:12,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 3685 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 14:21:12,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-12-14 14:21:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1469. [2022-12-14 14:21:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 819 states have (on average 1.2564102564102564) internal successors, (1029), 874 states have internal predecessors, (1029), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:12,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2065 transitions. [2022-12-14 14:21:12,274 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2065 transitions. Word has length 108 [2022-12-14 14:21:12,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:12,274 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2065 transitions. [2022-12-14 14:21:12,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 14:21:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2065 transitions. [2022-12-14 14:21:12,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 14:21:12,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:12,275 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:12,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 14:21:12,276 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:12,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:12,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1683752120, now seen corresponding path program 1 times [2022-12-14 14:21:12,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:12,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857120452] [2022-12-14 14:21:12,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:12,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:12,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:12,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857120452] [2022-12-14 14:21:12,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857120452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:12,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:12,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353196840] [2022-12-14 14:21:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:12,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:12,544 INFO L87 Difference]: Start difference. First operand 1469 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 14:21:15,605 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 14:21:15,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:15,827 INFO L93 Difference]: Finished difference Result 1478 states and 2076 transitions. [2022-12-14 14:21:15,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 113 [2022-12-14 14:21:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:15,834 INFO L225 Difference]: With dead ends: 1478 [2022-12-14 14:21:15,834 INFO L226 Difference]: Without dead ends: 1476 [2022-12-14 14:21:15,835 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 14:21:15,835 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 1451 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:15,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 3681 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:21:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-12-14 14:21:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2022-12-14 14:21:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 818 states have (on average 1.2555012224938875) internal successors, (1027), 872 states have internal predecessors, (1027), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2063 transitions. [2022-12-14 14:21:15,936 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2063 transitions. Word has length 113 [2022-12-14 14:21:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:15,936 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2063 transitions. [2022-12-14 14:21:15,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 14:21:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2063 transitions. [2022-12-14 14:21:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 14:21:15,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:15,937 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:15,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 14:21:15,937 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:15,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash -316888912, now seen corresponding path program 1 times [2022-12-14 14:21:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:15,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392866494] [2022-12-14 14:21:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:16,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:16,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392866494] [2022-12-14 14:21:16,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392866494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:16,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:16,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58409556] [2022-12-14 14:21:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:16,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:16,200 INFO L87 Difference]: Start difference. First operand 1467 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 14:21:19,277 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 14:21:19,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:19,511 INFO L93 Difference]: Finished difference Result 1476 states and 2074 transitions. [2022-12-14 14:21:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:19,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 118 [2022-12-14 14:21:19,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:19,518 INFO L225 Difference]: With dead ends: 1476 [2022-12-14 14:21:19,518 INFO L226 Difference]: Without dead ends: 1474 [2022-12-14 14:21:19,519 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 14:21:19,519 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1448 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:19,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3677 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:21:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-12-14 14:21:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-12-14 14:21:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 817 states have (on average 1.2545899632802937) internal successors, (1025), 870 states have internal predecessors, (1025), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2061 transitions. [2022-12-14 14:21:19,625 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2061 transitions. Word has length 118 [2022-12-14 14:21:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:19,625 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2061 transitions. [2022-12-14 14:21:19,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 14:21:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2061 transitions. [2022-12-14 14:21:19,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 14:21:19,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:19,626 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:19,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 14:21:19,627 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:19,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash 349233227, now seen corresponding path program 1 times [2022-12-14 14:21:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:19,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948251165] [2022-12-14 14:21:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:19,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:19,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948251165] [2022-12-14 14:21:19,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948251165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:19,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:19,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:19,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010943086] [2022-12-14 14:21:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:19,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:19,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:19,880 INFO L87 Difference]: Start difference. First operand 1465 states and 2061 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 14:21:23,539 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 14:21:23,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:23,742 INFO L93 Difference]: Finished difference Result 1474 states and 2072 transitions. [2022-12-14 14:21:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:23,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 123 [2022-12-14 14:21:23,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:23,747 INFO L225 Difference]: With dead ends: 1474 [2022-12-14 14:21:23,747 INFO L226 Difference]: Without dead ends: 1472 [2022-12-14 14:21:23,747 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 14:21:23,748 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1445 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:23,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 3673 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 14:21:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-12-14 14:21:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1463. [2022-12-14 14:21:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 816 states have (on average 1.2536764705882353) internal successors, (1023), 868 states have internal predecessors, (1023), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-12-14 14:21:23,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2059 transitions. [2022-12-14 14:21:23,855 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2059 transitions. Word has length 123 [2022-12-14 14:21:23,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:23,856 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2059 transitions. [2022-12-14 14:21:23,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 14:21:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2059 transitions. [2022-12-14 14:21:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 14:21:23,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:23,857 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 2, 2, 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] [2022-12-14 14:21:23,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 14:21:23,857 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1609582480, now seen corresponding path program 1 times [2022-12-14 14:21:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844340500] [2022-12-14 14:21:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-14 14:21:24,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844340500] [2022-12-14 14:21:24,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844340500] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:21:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53942148] [2022-12-14 14:21:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:24,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:24,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:24,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:24,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:21:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:25,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:21:25,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-14 14:21:25,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:21:25,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53942148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:25,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:21:25,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-12-14 14:21:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015614673] [2022-12-14 14:21:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:25,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:25,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:25,122 INFO L87 Difference]: Start difference. First operand 1463 states and 2059 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:21:29,283 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 14:21:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:29,450 INFO L93 Difference]: Finished difference Result 2893 states and 4094 transitions. [2022-12-14 14:21:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:21:29,450 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 139 [2022-12-14 14:21:29,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:29,454 INFO L225 Difference]: With dead ends: 2893 [2022-12-14 14:21:29,454 INFO L226 Difference]: Without dead ends: 1471 [2022-12-14 14:21:29,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 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 14:21:29,458 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 2 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:29,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6061 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 14:21:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2022-12-14 14:21:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1467. [2022-12-14 14:21:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 819 states have (on average 1.2527472527472527) internal successors, (1026), 871 states have internal predecessors, (1026), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 505 states have call predecessors, (523), 517 states have call successors, (523) [2022-12-14 14:21:29,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2068 transitions. [2022-12-14 14:21:29,567 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2068 transitions. Word has length 139 [2022-12-14 14:21:29,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:29,568 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2068 transitions. [2022-12-14 14:21:29,568 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:21:29,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2068 transitions. [2022-12-14 14:21:29,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 14:21:29,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:29,569 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:29,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:21:29,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:29,770 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:29,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash -618879856, now seen corresponding path program 1 times [2022-12-14 14:21:29,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:29,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393135076] [2022-12-14 14:21:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:29,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:30,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:30,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393135076] [2022-12-14 14:21:30,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393135076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:30,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:30,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:30,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663073795] [2022-12-14 14:21:30,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:30,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:30,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:30,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:30,040 INFO L87 Difference]: Start difference. First operand 1467 states and 2068 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 14:21:33,472 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 14:21:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:33,704 INFO L93 Difference]: Finished difference Result 1476 states and 2079 transitions. [2022-12-14 14:21:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 128 [2022-12-14 14:21:33,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:33,709 INFO L225 Difference]: With dead ends: 1476 [2022-12-14 14:21:33,709 INFO L226 Difference]: Without dead ends: 1474 [2022-12-14 14:21:33,710 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 14:21:33,710 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1442 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:33,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 3669 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:21:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-12-14 14:21:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-12-14 14:21:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 818 states have (on average 1.2518337408312958) internal successors, (1024), 869 states have internal predecessors, (1024), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 505 states have call predecessors, (523), 517 states have call successors, (523) [2022-12-14 14:21:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2066 transitions. [2022-12-14 14:21:33,826 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2066 transitions. Word has length 128 [2022-12-14 14:21:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:33,826 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2066 transitions. [2022-12-14 14:21:33,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 14:21:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2066 transitions. [2022-12-14 14:21:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 14:21:33,828 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:33,828 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 14:21:33,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 14:21:33,828 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1873964491, now seen corresponding path program 1 times [2022-12-14 14:21:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:33,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528622318] [2022-12-14 14:21:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:33,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:21:34,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:34,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528622318] [2022-12-14 14:21:34,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528622318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:34,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:34,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:21:34,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129584214] [2022-12-14 14:21:34,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:34,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:21:34,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:34,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:21:34,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:21:34,069 INFO L87 Difference]: Start difference. First operand 1465 states and 2066 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 14:21:37,134 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 14:21:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:37,374 INFO L93 Difference]: Finished difference Result 1474 states and 2077 transitions. [2022-12-14 14:21:37,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:21:37,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 133 [2022-12-14 14:21:37,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:37,379 INFO L225 Difference]: With dead ends: 1474 [2022-12-14 14:21:37,379 INFO L226 Difference]: Without dead ends: 1347 [2022-12-14 14:21:37,381 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 14:21:37,381 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1439 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:37,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 3667 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 14:21:37,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-12-14 14:21:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1338. [2022-12-14 14:21:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 753 states have (on average 1.2695883134130146) internal successors, (956), 802 states have internal predecessors, (956), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 465 states have call predecessors, (483), 477 states have call successors, (483) [2022-12-14 14:21:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1916 transitions. [2022-12-14 14:21:37,486 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1916 transitions. Word has length 133 [2022-12-14 14:21:37,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:37,486 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1916 transitions. [2022-12-14 14:21:37,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 14:21:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1916 transitions. [2022-12-14 14:21:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 14:21:37,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:37,487 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 3, 3, 2, 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] [2022-12-14 14:21:37,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 14:21:37,488 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1432556599, now seen corresponding path program 1 times [2022-12-14 14:21:37,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:37,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587984977] [2022-12-14 14:21:37,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:37,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-12-14 14:21:38,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:38,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587984977] [2022-12-14 14:21:38,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587984977] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:21:38,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186865095] [2022-12-14 14:21:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:38,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:38,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:38,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:38,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:21:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:39,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 3943 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-14 14:21:39,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-12-14 14:21:39,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:21:39,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186865095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:39,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:21:39,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-12-14 14:21:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023895611] [2022-12-14 14:21:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:39,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:39,054 INFO L87 Difference]: Start difference. First operand 1338 states and 1916 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:21:43,478 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 14:21:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:43,639 INFO L93 Difference]: Finished difference Result 2663 states and 3845 transitions. [2022-12-14 14:21:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:21:43,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 152 [2022-12-14 14:21:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:43,645 INFO L225 Difference]: With dead ends: 2663 [2022-12-14 14:21:43,645 INFO L226 Difference]: Without dead ends: 1344 [2022-12-14 14:21:43,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 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 14:21:43,649 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 2 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5547 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:43,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5547 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 14:21:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-12-14 14:21:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1340. [2022-12-14 14:21:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 755 states have (on average 1.2688741721854304) internal successors, (958), 803 states have internal predecessors, (958), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 466 states have call predecessors, (483), 477 states have call successors, (483) [2022-12-14 14:21:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1918 transitions. [2022-12-14 14:21:43,754 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1918 transitions. Word has length 152 [2022-12-14 14:21:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:43,754 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1918 transitions. [2022-12-14 14:21:43,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:21:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1918 transitions. [2022-12-14 14:21:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-14 14:21:43,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:43,755 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 14:21:43,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:21:43,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 14:21:43,956 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1955640514, now seen corresponding path program 2 times [2022-12-14 14:21:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:43,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416121672] [2022-12-14 14:21:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-12-14 14:21:44,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:44,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416121672] [2022-12-14 14:21:44,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416121672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:44,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:44,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:21:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959418280] [2022-12-14 14:21:44,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:44,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:44,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:44,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:44,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:44,764 INFO L87 Difference]: Start difference. First operand 1340 states and 1918 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:21:48,751 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 14:21:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:48,913 INFO L93 Difference]: Finished difference Result 2665 states and 3843 transitions. [2022-12-14 14:21:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:21:48,913 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2022-12-14 14:21:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:48,918 INFO L225 Difference]: With dead ends: 2665 [2022-12-14 14:21:48,919 INFO L226 Difference]: Without dead ends: 1344 [2022-12-14 14:21:48,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:21:48,922 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 0 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5527 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:48,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5527 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 14:21:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-12-14 14:21:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1342. [2022-12-14 14:21:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2681638044914134) internal successors, (960), 804 states have internal predecessors, (960), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-12-14 14:21:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1920 transitions. [2022-12-14 14:21:49,029 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1920 transitions. Word has length 165 [2022-12-14 14:21:49,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:49,029 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1920 transitions. [2022-12-14 14:21:49,029 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:21:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1920 transitions. [2022-12-14 14:21:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 14:21:49,031 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:49,031 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 14:21:49,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 14:21:49,031 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash 865876564, now seen corresponding path program 1 times [2022-12-14 14:21:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914490235] [2022-12-14 14:21:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:49,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-12-14 14:21:49,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:49,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914490235] [2022-12-14 14:21:49,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914490235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:49,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:49,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:21:49,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726287426] [2022-12-14 14:21:49,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:49,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:21:49,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:49,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:21:49,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:21:49,750 INFO L87 Difference]: Start difference. First operand 1342 states and 1920 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 14:21:54,104 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 14:21:54,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:54,496 INFO L93 Difference]: Finished difference Result 1351 states and 1931 transitions. [2022-12-14 14:21:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:21:54,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 222 [2022-12-14 14:21:54,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:54,500 INFO L225 Difference]: With dead ends: 1351 [2022-12-14 14:21:54,500 INFO L226 Difference]: Without dead ends: 1349 [2022-12-14 14:21:54,501 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 14:21:54,501 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1284 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:54,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 5645 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 14:21:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-12-14 14:21:54,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1342. [2022-12-14 14:21:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2668428005284016) internal successors, (959), 804 states have internal predecessors, (959), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-12-14 14:21:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1919 transitions. [2022-12-14 14:21:54,609 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1919 transitions. Word has length 222 [2022-12-14 14:21:54,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:54,609 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1919 transitions. [2022-12-14 14:21:54,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 14:21:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1919 transitions. [2022-12-14 14:21:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-12-14 14:21:54,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:54,611 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 14:21:54,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 14:21:54,611 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash -170752532, now seen corresponding path program 1 times [2022-12-14 14:21:54,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:54,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829941833] [2022-12-14 14:21:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-12-14 14:21:54,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:54,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829941833] [2022-12-14 14:21:54,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829941833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:54,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:54,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:21:54,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813351922] [2022-12-14 14:21:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:54,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:21:54,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:21:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:21:54,875 INFO L87 Difference]: Start difference. First operand 1342 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:21:57,744 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 14:21:57,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:57,926 INFO L93 Difference]: Finished difference Result 2668 states and 3848 transitions. [2022-12-14 14:21:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:21:57,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 225 [2022-12-14 14:21:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:57,930 INFO L225 Difference]: With dead ends: 2668 [2022-12-14 14:21:57,930 INFO L226 Difference]: Without dead ends: 1345 [2022-12-14 14:21:57,934 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 14:21:57,935 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1261 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:57,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1962 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 14:21:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-12-14 14:21:58,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1340. [2022-12-14 14:21:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 755 states have (on average 1.2649006622516556) internal successors, (955), 802 states have internal predecessors, (955), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-12-14 14:21:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1915 transitions. [2022-12-14 14:21:58,071 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1915 transitions. Word has length 225 [2022-12-14 14:21:58,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:58,071 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1915 transitions. [2022-12-14 14:21:58,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:21:58,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1915 transitions. [2022-12-14 14:21:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-12-14 14:21:58,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:58,077 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 15, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:58,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 14:21:58,077 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:21:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 582635987, now seen corresponding path program 1 times [2022-12-14 14:21:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735805272] [2022-12-14 14:21:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4299 trivial. 0 not checked. [2022-12-14 14:21:58,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:58,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735805272] [2022-12-14 14:21:58,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735805272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:58,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:58,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:21:58,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011778280] [2022-12-14 14:21:58,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:58,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:58,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:58,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:58,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:58,883 INFO L87 Difference]: Start difference. First operand 1340 states and 1915 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 14:22:02,815 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 14:22:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:03,100 INFO L93 Difference]: Finished difference Result 1422 states and 2022 transitions. [2022-12-14 14:22:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:22:03,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 477 [2022-12-14 14:22:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:03,106 INFO L225 Difference]: With dead ends: 1422 [2022-12-14 14:22:03,107 INFO L226 Difference]: Without dead ends: 1420 [2022-12-14 14:22:03,107 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 14:22:03,107 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1142 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:03,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 4909 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 682 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 14:22:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-12-14 14:22:03,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1415. [2022-12-14 14:22:03,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 798 states have (on average 1.2644110275689222) internal successors, (1009), 847 states have internal predecessors, (1009), 498 states have call successors, (498), 115 states have call predecessors, (498), 116 states have return successors, (504), 488 states have call predecessors, (504), 498 states have call successors, (504) [2022-12-14 14:22:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2011 transitions. [2022-12-14 14:22:03,241 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2011 transitions. Word has length 477 [2022-12-14 14:22:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:03,242 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 2011 transitions. [2022-12-14 14:22:03,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 14:22:03,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2011 transitions. [2022-12-14 14:22:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2022-12-14 14:22:03,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:03,249 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 11, 8, 8, 8, 8, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 14:22:03,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 14:22:03,250 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:22:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:03,250 INFO L85 PathProgramCache]: Analyzing trace with hash 622324663, now seen corresponding path program 1 times [2022-12-14 14:22:03,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:03,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219703764] [2022-12-14 14:22:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4030 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4016 trivial. 0 not checked. [2022-12-14 14:22:04,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:04,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219703764] [2022-12-14 14:22:04,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219703764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:04,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:04,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:22:04,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821687792] [2022-12-14 14:22:04,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:04,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:22:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:04,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:22:04,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:22:04,027 INFO L87 Difference]: Start difference. First operand 1415 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 14:22:05,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:08,426 WARN L539 Checker$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 14:22:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:08,585 INFO L93 Difference]: Finished difference Result 2998 states and 4328 transitions. [2022-12-14 14:22:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:22:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 799 [2022-12-14 14:22:08,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:08,591 INFO L225 Difference]: With dead ends: 2998 [2022-12-14 14:22:08,591 INFO L226 Difference]: Without dead ends: 1602 [2022-12-14 14:22:08,595 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 14:22:08,595 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 132 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 4208 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:08,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 4208 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 623 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 14:22:08,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-12-14 14:22:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1447. [2022-12-14 14:22:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 819 states have (on average 1.2661782661782661) internal successors, (1037), 870 states have internal predecessors, (1037), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 499 states have call predecessors, (515), 509 states have call successors, (515) [2022-12-14 14:22:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2061 transitions. [2022-12-14 14:22:08,746 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2061 transitions. Word has length 799 [2022-12-14 14:22:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:08,746 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2061 transitions. [2022-12-14 14:22:08,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 14:22:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2061 transitions. [2022-12-14 14:22:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-12-14 14:22:08,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:08,755 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 15, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:08,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 14:22:08,755 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:22:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:08,756 INFO L85 PathProgramCache]: Analyzing trace with hash -532268281, now seen corresponding path program 1 times [2022-12-14 14:22:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:08,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970103736] [2022-12-14 14:22:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4218 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2022-12-14 14:22:09,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:09,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970103736] [2022-12-14 14:22:09,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970103736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:09,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:09,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:22:09,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209026748] [2022-12-14 14:22:09,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:09,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:22:09,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:09,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:22:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:09,364 INFO L87 Difference]: Start difference. First operand 1447 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-12-14 14:22:12,753 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 14:22:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:12,887 INFO L93 Difference]: Finished difference Result 2881 states and 4142 transitions. [2022-12-14 14:22:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:12,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 878 [2022-12-14 14:22:12,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:12,892 INFO L225 Difference]: With dead ends: 2881 [2022-12-14 14:22:12,892 INFO L226 Difference]: Without dead ends: 1453 [2022-12-14 14:22:12,896 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 14:22:12,897 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:12,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2761 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:22:12,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-12-14 14:22:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1449. [2022-12-14 14:22:13,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 821 states have (on average 1.2655298416565164) internal successors, (1039), 872 states have internal predecessors, (1039), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 499 states have call predecessors, (515), 509 states have call successors, (515) [2022-12-14 14:22:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2063 transitions. [2022-12-14 14:22:13,064 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2063 transitions. Word has length 878 [2022-12-14 14:22:13,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:13,064 INFO L495 AbstractCegarLoop]: Abstraction has 1449 states and 2063 transitions. [2022-12-14 14:22:13,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-12-14 14:22:13,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2063 transitions. [2022-12-14 14:22:13,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2022-12-14 14:22:13,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:13,073 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 13, 13, 11, 8, 8, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 14:22:13,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 14:22:13,073 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-12-14 14:22:13,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:13,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1055565437, now seen corresponding path program 1 times [2022-12-14 14:22:13,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:13,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264153939] [2022-12-14 14:22:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4217 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4189 trivial. 0 not checked. [2022-12-14 14:22:13,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:13,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264153939] [2022-12-14 14:22:13,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264153939] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:22:13,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840098866] [2022-12-14 14:22:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:13,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:22:13,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:22:13,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:22:13,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3c1628-1f95-43db-a80d-e75ebf6195bb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:22:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:15,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 8395 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:22:15,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:22:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4217 backedges. 1443 proven. 1 refuted. 0 times theorem prover too weak. 2773 trivial. 0 not checked. [2022-12-14 14:22:15,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:22:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4217 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4189 trivial. 0 not checked. [2022-12-14 14:22:16,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840098866] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:22:16,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1328766423] [2022-12-14 14:22:16,125 INFO L159 IcfgInterpreter]: Started Sifa with 208 locations of interest [2022-12-14 14:22:16,125 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:22:16,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:22:16,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:22:16,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:22:24,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 59 select indices, 59 select index equivalence classes, 1770 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 2264 treesize of output 1938 [2022-12-14 14:22:27,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:27,933 INFO L217 Elim1Store]: Index analysis took 276 ms [2022-12-14 14:22:28,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 31 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 114 [2022-12-14 14:22:29,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 37 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 125 [2022-12-14 14:22:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:29,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-12-14 14:22:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,276 INFO L217 Elim1Store]: Index analysis took 241 ms [2022-12-14 14:22:31,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 105 [2022-12-14 14:22:31,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:31,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-12-14 14:22:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 80 [2022-12-14 14:22:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:32,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 98 [2022-12-14 14:22:33,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-12-14 14:22:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:33,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-12-14 14:27:56,004 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 3905 DAG size of output: 3903 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 14:33:38,869 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 3903 DAG size of output: 3901 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)