./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/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_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 22:35:54,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:35:54,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:35:54,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:35:54,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:35:54,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:35:54,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:35:54,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:35:54,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:35:54,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:35:54,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:35:54,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:35:54,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:35:54,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:35:54,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:35:54,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:35:54,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:35:54,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:35:54,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:35:54,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:35:54,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:35:54,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:35:54,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:35:54,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:35:54,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:35:54,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:35:54,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:35:54,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:35:54,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:35:54,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:35:54,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:35:54,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:35:54,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:35:54,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:35:54,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:35:54,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:35:54,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:35:54,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:35:54,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:35:54,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:35:54,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:35:54,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:35:54,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:35:54,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:35:54,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:35:54,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:35:54,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:35:54,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:35:54,340 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:35:54,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:35:54,340 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:35:54,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:35:54,341 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:35:54,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:35:54,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:35:54,341 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:35:54,342 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:35:54,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:35:54,342 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:35:54,343 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:35:54,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:35:54,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:35:54,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:35:54,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:35:54,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:35:54,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:35:54,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:35:54,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:35:54,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:35:54,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:35:54,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:35:54,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:54,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:35:54,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:35:54,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:35:54,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:35:54,347 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:35:54,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:35:54,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:35:54,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:35:54,348 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_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 [2022-11-25 22:35:54,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:35:54,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:35:54,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:35:54,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:35:54,691 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:35:54,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-25 22:35:57,826 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:35:58,658 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:35:58,659 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-25 22:35:58,727 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/data/6584bb964/2049650a4f504e67aa5eac9e7ae3c1df/FLAG0ebefcd11 [2022-11-25 22:35:58,745 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/data/6584bb964/2049650a4f504e67aa5eac9e7ae3c1df [2022-11-25 22:35:58,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:35:58,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:35:58,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:58,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:35:58,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:35:58,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:58" (1/1) ... [2022-11-25 22:35:58,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353416f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:58, skipping insertion in model container [2022-11-25 22:35:58,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:58" (1/1) ... [2022-11-25 22:35:58,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:35:58,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:36:00,143 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:00,150 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:00,157 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:00,184 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:00,185 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:36:00,186 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-25 22:36:00,192 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 22:36:00,256 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 22:36:00,353 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:00,354 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:36:00,362 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:00,363 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:36:00,415 WARN L623 FunctionHandler]: Unknown extern function ftrace_raw_output_prep [2022-11-25 22:36:00,415 WARN L623 FunctionHandler]: Unknown extern function trace_seq_printf [2022-11-25 22:36:00,424 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:00,426 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:00,427 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:00,429 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:00,550 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,570 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,588 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,611 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,613 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:00,622 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,657 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,674 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,706 WARN L623 FunctionHandler]: Unknown extern function decode_bch [2022-11-25 22:36:00,710 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,719 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,766 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,807 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,809 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,812 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,814 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,816 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,823 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,855 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,868 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:00,870 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,873 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,881 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,882 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:00,891 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,902 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,934 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,949 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:00,964 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:36:00,971 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:36:00,999 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:36:01,001 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:36:01,008 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:36:01,015 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,023 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:01,031 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,033 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,034 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,034 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,035 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,041 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:01,048 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,054 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:01,061 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,062 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,063 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,063 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,064 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,065 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,065 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,066 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,066 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,067 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:01,068 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,069 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:01,075 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:01,081 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-11-25 22:36:01,082 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:01,083 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:01,084 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:01,085 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:01,086 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 22:36:01,092 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 22:36:01,098 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-11-25 22:36:01,110 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:01,111 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:01,112 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,112 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,119 WARN L623 FunctionHandler]: Unknown extern function mtd_device_unregister [2022-11-25 22:36:01,119 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,120 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,120 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,120 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:01,128 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:01,136 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:01,138 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:01,139 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:01,147 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 22:36:01,147 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:01,148 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-11-25 22:36:01,149 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:36:01,149 WARN L623 FunctionHandler]: Unknown extern function init_bch [2022-11-25 22:36:01,151 WARN L623 FunctionHandler]: Unknown extern function mtd_device_parse_register [2022-11-25 22:36:01,152 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:01,153 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-11-25 22:36:01,166 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-11-25 22:36:01,173 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_probe [2022-11-25 22:36:01,606 WARN L623 FunctionHandler]: Unknown extern function trace_event_raw_init [2022-11-25 22:36:01,606 WARN L623 FunctionHandler]: Unknown extern function ftrace_event_reg [2022-11-25 22:36:01,622 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:01,623 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:01,623 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:01,624 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:01,624 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:01,625 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:01,625 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:01,626 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:01,627 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:01,628 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:01,628 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:01,628 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:01,659 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 22:36:01,660 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:01,661 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:02,241 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:36:02,563 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:36:03,070 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-11-25 22:36:03,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-11-25 22:36:03,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-11-25 22:36:03,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-11-25 22:36:03,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-11-25 22:36:03,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-11-25 22:36:03,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-11-25 22:36:03,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-11-25 22:36:03,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-11-25 22:36:03,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-11-25 22:36:03,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-11-25 22:36:03,080 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-11-25 22:36:03,080 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-11-25 22:36:03,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-11-25 22:36:03,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-11-25 22:36:03,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-11-25 22:36:03,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-11-25 22:36:03,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-11-25 22:36:03,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-11-25 22:36:03,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-11-25 22:36:03,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-11-25 22:36:03,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-11-25 22:36:03,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-11-25 22:36:03,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-11-25 22:36:03,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-11-25 22:36:03,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-11-25 22:36:03,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-11-25 22:36:03,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-11-25 22:36:03,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-11-25 22:36:03,089 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-11-25 22:36:03,089 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-11-25 22:36:03,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-11-25 22:36:03,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-11-25 22:36:03,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-11-25 22:36:03,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-11-25 22:36:03,092 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-11-25 22:36:03,092 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-11-25 22:36:03,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-11-25 22:36:03,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-11-25 22:36:03,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-11-25 22:36:03,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-11-25 22:36:03,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-11-25 22:36:03,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-11-25 22:36:03,096 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-11-25 22:36:03,096 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-11-25 22:36:03,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-11-25 22:36:03,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-11-25 22:36:03,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-11-25 22:36:03,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-11-25 22:36:03,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-11-25 22:36:03,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-11-25 22:36:03,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-11-25 22:36:03,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-11-25 22:36:03,101 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-11-25 22:36:03,101 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-11-25 22:36:03,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-11-25 22:36:03,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-11-25 22:36:03,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-11-25 22:36:03,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-11-25 22:36:03,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-11-25 22:36:03,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-11-25 22:36:03,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-11-25 22:36:03,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-11-25 22:36:03,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-11-25 22:36:03,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-11-25 22:36:03,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-11-25 22:36:03,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-11-25 22:36:03,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-11-25 22:36:03,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-11-25 22:36:03,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-11-25 22:36:03,109 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-11-25 22:36:03,109 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-11-25 22:36:03,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-11-25 22:36:03,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-11-25 22:36:03,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-11-25 22:36:03,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-11-25 22:36:03,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-11-25 22:36:03,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-11-25 22:36:03,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-11-25 22:36:03,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-11-25 22:36:03,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-11-25 22:36:03,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-11-25 22:36:03,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-11-25 22:36:03,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-11-25 22:36:03,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-11-25 22:36:03,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-11-25 22:36:03,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-11-25 22:36:03,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-11-25 22:36:03,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:03,169 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:36:03,262 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:03,263 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:03,264 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:03,265 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:03,266 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:36:03,266 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-25 22:36:03,267 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 22:36:03,268 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 22:36:03,271 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:03,271 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:36:03,273 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:36:03,274 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:36:03,276 WARN L623 FunctionHandler]: Unknown extern function ftrace_raw_output_prep [2022-11-25 22:36:03,277 WARN L623 FunctionHandler]: Unknown extern function trace_seq_printf [2022-11-25 22:36:03,278 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:03,279 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:03,279 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:03,280 WARN L623 FunctionHandler]: Unknown extern function trace_define_field [2022-11-25 22:36:03,286 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,289 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,291 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,296 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:03,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,301 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,304 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,310 WARN L623 FunctionHandler]: Unknown extern function decode_bch [2022-11-25 22:36:03,312 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,314 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,352 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,356 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,357 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,358 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,359 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,360 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,361 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,367 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,369 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:03,370 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,373 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,374 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:03,375 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,379 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,385 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,390 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,393 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:36:03,394 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:36:03,403 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:36:03,404 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:36:03,405 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:36:03,406 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,408 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:03,410 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,414 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,415 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,419 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,419 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,420 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:03,422 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,422 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:03,426 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,428 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,428 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,428 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,434 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,434 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,434 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,435 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,435 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,435 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 22:36:03,436 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,436 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 22:36:03,437 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 22:36:03,438 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-11-25 22:36:03,438 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:03,439 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:03,439 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:03,440 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-11-25 22:36:03,440 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 22:36:03,441 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove_recursive [2022-11-25 22:36:03,442 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-11-25 22:36:03,457 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:03,458 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:03,458 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,458 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,459 WARN L623 FunctionHandler]: Unknown extern function mtd_device_unregister [2022-11-25 22:36:03,459 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:03,461 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,463 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:03,465 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:36:03,465 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:03,466 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 22:36:03,467 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:03,467 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-11-25 22:36:03,468 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:36:03,468 WARN L623 FunctionHandler]: Unknown extern function init_bch [2022-11-25 22:36:03,469 WARN L623 FunctionHandler]: Unknown extern function mtd_device_parse_register [2022-11-25 22:36:03,470 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:03,470 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-11-25 22:36:03,472 WARN L623 FunctionHandler]: Unknown extern function free_bch [2022-11-25 22:36:03,473 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_probe [2022-11-25 22:36:03,485 WARN L623 FunctionHandler]: Unknown extern function trace_event_raw_init [2022-11-25 22:36:03,486 WARN L623 FunctionHandler]: Unknown extern function ftrace_event_reg [2022-11-25 22:36:03,498 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:03,498 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:03,499 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:03,499 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:03,499 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:03,500 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:03,500 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 22:36:03,500 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 22:36:03,501 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:03,502 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:03,502 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:03,502 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 22:36:03,559 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 22:36:03,562 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:03,563 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:03,587 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:36:03,597 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:36:03,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-11-25 22:36:03,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-11-25 22:36:03,663 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-11-25 22:36:03,663 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-11-25 22:36:03,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-11-25 22:36:03,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-11-25 22:36:03,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-11-25 22:36:03,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-11-25 22:36:03,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-11-25 22:36:03,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-11-25 22:36:03,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-11-25 22:36:03,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-11-25 22:36:03,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-11-25 22:36:03,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-11-25 22:36:03,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-11-25 22:36:03,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-11-25 22:36:03,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-11-25 22:36:03,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-11-25 22:36:03,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-11-25 22:36:03,669 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-11-25 22:36:03,669 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-11-25 22:36:03,670 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-11-25 22:36:03,670 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-11-25 22:36:03,670 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-11-25 22:36:03,671 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-11-25 22:36:03,671 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-11-25 22:36:03,671 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-11-25 22:36:03,672 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-11-25 22:36:03,672 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-11-25 22:36:03,672 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-11-25 22:36:03,673 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-11-25 22:36:03,673 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-11-25 22:36:03,677 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-11-25 22:36:03,677 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-11-25 22:36:03,678 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-11-25 22:36:03,678 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-11-25 22:36:03,678 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-11-25 22:36:03,683 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-11-25 22:36:03,684 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-11-25 22:36:03,685 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-11-25 22:36:03,686 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-11-25 22:36:03,686 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-11-25 22:36:03,686 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-11-25 22:36:03,687 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-11-25 22:36:03,688 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-11-25 22:36:03,688 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-11-25 22:36:03,689 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-11-25 22:36:03,690 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-11-25 22:36:03,690 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-11-25 22:36:03,691 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-11-25 22:36:03,691 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-11-25 22:36:03,691 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-11-25 22:36:03,692 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-11-25 22:36:03,693 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_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-11-25 22:36:03,694 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-11-25 22:36:03,694 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-11-25 22:36:03,694 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-11-25 22:36:03,695 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-11-25 22:36:03,696 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-11-25 22:36:03,698 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-11-25 22:36:03,700 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-11-25 22:36:03,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-11-25 22:36:03,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-11-25 22:36:03,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-11-25 22:36:03,702 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-11-25 22:36:03,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-11-25 22:36:03,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-11-25 22:36:03,706 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-11-25 22:36:03,707 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-11-25 22:36:03,707 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-11-25 22:36:03,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-11-25 22:36:03,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-11-25 22:36:03,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-11-25 22:36:03,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-11-25 22:36:03,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-11-25 22:36:03,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-11-25 22:36:03,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-11-25 22:36:03,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-11-25 22:36:03,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-11-25 22:36:03,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-11-25 22:36:03,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-11-25 22:36:03,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-11-25 22:36:03,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-11-25 22:36:03,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-11-25 22:36:03,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-11-25 22:36:03,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-11-25 22:36:03,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-11-25 22:36:03,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-11-25 22:36:03,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:04,010 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:36:04,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04 WrapperNode [2022-11-25 22:36:04,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:04,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:04,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:36:04,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:36:04,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,380 INFO L138 Inliner]: procedures = 642, calls = 3012, calls flagged for inlining = 308, calls inlined = 202, statements flattened = 4626 [2022-11-25 22:36:04,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:04,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:36:04,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:36:04,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:36:04,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:36:04,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:36:04,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:36:04,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:36:04,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (1/1) ... [2022-11-25 22:36:04,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:04,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:36:04,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:36:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_prepare [2022-11-25 22:36:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_prepare [2022-11-25 22:36:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:36:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:36:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:36:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:36:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writeb [2022-11-25 22:36:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writeb [2022-11-25 22:36:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-25 22:36:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-25 22:36:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:36:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:36:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writew [2022-11-25 22:36:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writew [2022-11-25 22:36:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:36:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:36:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_ecc_init [2022-11-25 22:36:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_ecc_init [2022-11-25 22:36:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:36:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:36:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-11-25 22:36:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-11-25 22:36:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:36:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:36:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_pm_ops_instance_6 [2022-11-25 22:36:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_pm_ops_instance_6 [2022-11-25 22:36:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_reliable_mode [2022-11-25 22:36:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_reliable_mode [2022-11-25 22:36:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:36:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:36:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_data_area [2022-11-25 22:36:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_data_area [2022-11-25 22:36:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:36:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:36:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:36:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:36:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:36:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure doc_is_ready [2022-11-25 22:36:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_is_ready [2022-11-25 22:36:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readw [2022-11-25 22:36:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readw [2022-11-25 22:36:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_release [2022-11-25 22:36:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_release [2022-11-25 22:36:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:36:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:36:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readb [2022-11-25 22:36:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readb [2022-11-25 22:36:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_resume [2022-11-25 22:36:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_resume [2022-11-25 22:36:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:36:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 22:36:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 22:36:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:36:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:36:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:36:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:36:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:36:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:36:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:36:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readw [2022-11-25 22:36:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readw [2022-11-25 22:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure doc_release_device [2022-11-25 22:36:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_release_device [2022-11-25 22:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:36:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 22:36:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 22:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readb [2022-11-25 22:36:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readb [2022-11-25 22:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-25 22:36:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-25 22:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-11-25 22:36:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-11-25 22:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:36:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:36:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_device_id [2022-11-25 22:36:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_device_id [2022-11-25 22:36:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:36:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:36:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2022-11-25 22:36:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2022-11-25 22:36:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:36:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-25 22:36:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-25 22:36:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-25 22:36:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-25 22:36:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:36:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:36:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:36:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:36:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure doc_delay [2022-11-25 22:36:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_delay [2022-11-25 22:36:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 22:36:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:36:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:36:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:36:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:36:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-25 22:36:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-25 22:36:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_getbytes [2022-11-25 22:36:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_getbytes [2022-11-25 22:36:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_asic_mode [2022-11-25 22:36:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_asic_mode [2022-11-25 22:36:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_sequence [2022-11-25 22:36:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_sequence [2022-11-25 22:36:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-25 22:36:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-25 22:36:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:36:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:36:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_suspend [2022-11-25 22:36:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_suspend [2022-11-25 22:36:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:36:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:36:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_probe [2022-11-25 22:36:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_probe [2022-11-25 22:36:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:36:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:36:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-25 22:36:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-25 22:36:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-25 22:36:04,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-25 22:36:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:36:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:36:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-25 22:36:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-25 22:36:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:36:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:36:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:36:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure doc_page_finish [2022-11-25 22:36:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_page_finish [2022-11-25 22:36:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:36:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:36:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:36:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure doc_reset_seq [2022-11-25 22:36:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_reset_seq [2022-11-25 22:36:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_command [2022-11-25 22:36:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_command [2022-11-25 22:36:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_finish [2022-11-25 22:36:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_finish [2022-11-25 22:36:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-25 22:36:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-25 22:36:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-25 22:36:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-25 22:36:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:36:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-25 22:36:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-25 22:36:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 22:36:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 22:36:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:36:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:36:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-11-25 22:36:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-11-25 22:36:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:36:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:36:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 22:36:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 22:36:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:36:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:36:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:36:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:36:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_dev2docg3 [2022-11-25 22:36:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_dev2docg3 [2022-11-25 22:36:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:36:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:36:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-25 22:36:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-25 22:36:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:36:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:36:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:36:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:36:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:36:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:36:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-25 22:36:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-25 22:36:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:36:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:36:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:36:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-25 22:36:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-25 22:36:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_address [2022-11-25 22:36:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_address [2022-11-25 22:36:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:36:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:36:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure trace_docg3_io [2022-11-25 22:36:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_docg3_io [2022-11-25 22:36:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:36:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:36:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-25 22:36:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-25 22:36:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure doc_wait_ready [2022-11-25 22:36:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_wait_ready [2022-11-25 22:36:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure free_bch [2022-11-25 22:36:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bch [2022-11-25 22:36:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:36:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:36:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:36:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:36:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:36:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure doc_setup_addr_sector [2022-11-25 22:36:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_setup_addr_sector [2022-11-25 22:36:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-25 22:36:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-25 22:36:05,750 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:36:05,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:36:06,910 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:36:18,981 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:36:19,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:36:19,761 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 22:36:19,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:19 BoogieIcfgContainer [2022-11-25 22:36:19,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:36:19,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:36:19,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:36:19,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:36:19,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:35:58" (1/3) ... [2022-11-25 22:36:19,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dc48ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:19, skipping insertion in model container [2022-11-25 22:36:19,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:04" (2/3) ... [2022-11-25 22:36:19,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dc48ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:19, skipping insertion in model container [2022-11-25 22:36:19,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:19" (3/3) ... [2022-11-25 22:36:19,779 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-25 22:36:19,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:36:19,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-25 22:36:19,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:36:19,890 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;@68d86ee1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:36:19,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-25 22:36:19,900 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) [2022-11-25 22:36:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 22:36:19,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:19,909 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] [2022-11-25 22:36:19,910 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)] === [2022-11-25 22:36:19,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1713808928, now seen corresponding path program 1 times [2022-11-25 22:36:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:19,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990226623] [2022-11-25 22:36:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:21,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:21,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990226623] [2022-11-25 22:36:21,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990226623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:21,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:21,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:21,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751868203] [2022-11-25 22:36:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:21,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:21,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:21,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:21,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:21,459 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) [2022-11-25 22:36:24,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:25,137 INFO L93 Difference]: Finished difference Result 2798 states and 4072 transitions. [2022-11-25 22:36:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:25,156 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 [2022-11-25 22:36:25,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:25,193 INFO L225 Difference]: With dead ends: 2798 [2022-11-25 22:36:25,193 INFO L226 Difference]: Without dead ends: 1516 [2022-11-25 22:36:25,210 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 [2022-11-25 22:36:25,213 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 1537 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:25,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 3823 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 22:36:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-11-25 22:36:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1507. [2022-11-25 22:36:25,423 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) [2022-11-25 22:36:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2105 transitions. [2022-11-25 22:36:25,439 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2105 transitions. Word has length 36 [2022-11-25 22:36:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:25,440 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 2105 transitions. [2022-11-25 22:36:25,440 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) [2022-11-25 22:36:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2105 transitions. [2022-11-25 22:36:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 22:36:25,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:25,442 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] [2022-11-25 22:36:25,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:36:25,444 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)] === [2022-11-25 22:36:25,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:25,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1426779165, now seen corresponding path program 1 times [2022-11-25 22:36:25,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:25,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561856801] [2022-11-25 22:36:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:25,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:26,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:26,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561856801] [2022-11-25 22:36:26,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561856801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:26,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:26,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750010465] [2022-11-25 22:36:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:26,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:26,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:26,258 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) [2022-11-25 22:36:30,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:30,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:30,520 INFO L93 Difference]: Finished difference Result 1516 states and 2116 transitions. [2022-11-25 22:36:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:30,522 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 [2022-11-25 22:36:30,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:30,543 INFO L225 Difference]: With dead ends: 1516 [2022-11-25 22:36:30,543 INFO L226 Difference]: Without dead ends: 1514 [2022-11-25 22:36:30,544 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 [2022-11-25 22:36:30,547 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1505 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:30,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 3761 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:36:30,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-11-25 22:36:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1505. [2022-11-25 22:36:30,649 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) [2022-11-25 22:36:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2103 transitions. [2022-11-25 22:36:30,665 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2103 transitions. Word has length 41 [2022-11-25 22:36:30,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:30,667 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2103 transitions. [2022-11-25 22:36:30,667 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) [2022-11-25 22:36:30,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2103 transitions. [2022-11-25 22:36:30,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 22:36:30,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:30,673 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] [2022-11-25 22:36:30,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:36:30,674 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)] === [2022-11-25 22:36:30,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:30,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1788606719, now seen corresponding path program 1 times [2022-11-25 22:36:30,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:30,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829251253] [2022-11-25 22:36:30,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:30,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:31,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:31,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829251253] [2022-11-25 22:36:31,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829251253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:31,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:31,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:31,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300176474] [2022-11-25 22:36:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:31,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:31,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:31,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:31,361 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) [2022-11-25 22:36:35,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:35,436 INFO L93 Difference]: Finished difference Result 1514 states and 2114 transitions. [2022-11-25 22:36:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:35,436 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 [2022-11-25 22:36:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:35,447 INFO L225 Difference]: With dead ends: 1514 [2022-11-25 22:36:35,447 INFO L226 Difference]: Without dead ends: 1512 [2022-11-25 22:36:35,449 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 [2022-11-25 22:36:35,450 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1502 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:35,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 3757 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:36:35,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-11-25 22:36:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1503. [2022-11-25 22:36:35,542 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) [2022-11-25 22:36:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2101 transitions. [2022-11-25 22:36:35,556 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2101 transitions. Word has length 46 [2022-11-25 22:36:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:35,557 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2101 transitions. [2022-11-25 22:36:35,557 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) [2022-11-25 22:36:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2101 transitions. [2022-11-25 22:36:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:36:35,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:35,561 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] [2022-11-25 22:36:35,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:36:35,562 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)] === [2022-11-25 22:36:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1480668763, now seen corresponding path program 1 times [2022-11-25 22:36:35,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702434464] [2022-11-25 22:36:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:35,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:36,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:36,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702434464] [2022-11-25 22:36:36,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702434464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:36,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:36,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:36,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478653625] [2022-11-25 22:36:36,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:36,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:36,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:36,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:36,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:36,084 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) [2022-11-25 22:36:39,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:40,105 INFO L93 Difference]: Finished difference Result 1512 states and 2112 transitions. [2022-11-25 22:36:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:40,106 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 [2022-11-25 22:36:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:40,116 INFO L225 Difference]: With dead ends: 1512 [2022-11-25 22:36:40,116 INFO L226 Difference]: Without dead ends: 1510 [2022-11-25 22:36:40,118 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 [2022-11-25 22:36:40,119 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1499 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:40,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3753 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:36:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-11-25 22:36:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1501. [2022-11-25 22:36:40,213 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) [2022-11-25 22:36:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2099 transitions. [2022-11-25 22:36:40,224 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2099 transitions. Word has length 51 [2022-11-25 22:36:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:40,225 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 2099 transitions. [2022-11-25 22:36:40,225 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) [2022-11-25 22:36:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2099 transitions. [2022-11-25 22:36:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 22:36:40,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:40,227 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] [2022-11-25 22:36:40,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:36:40,227 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)] === [2022-11-25 22:36:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash 754647360, now seen corresponding path program 1 times [2022-11-25 22:36:40,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:40,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033053337] [2022-11-25 22:36:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:40,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:40,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:40,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033053337] [2022-11-25 22:36:40,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033053337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:40,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:40,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660348863] [2022-11-25 22:36:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:40,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:40,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:40,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:40,873 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) [2022-11-25 22:36:44,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:45,360 INFO L93 Difference]: Finished difference Result 1510 states and 2110 transitions. [2022-11-25 22:36:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:45,361 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 [2022-11-25 22:36:45,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:45,372 INFO L225 Difference]: With dead ends: 1510 [2022-11-25 22:36:45,372 INFO L226 Difference]: Without dead ends: 1508 [2022-11-25 22:36:45,374 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 [2022-11-25 22:36:45,375 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1496 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:45,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 3749 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:36:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-11-25 22:36:45,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2022-11-25 22:36:45,488 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) [2022-11-25 22:36:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2097 transitions. [2022-11-25 22:36:45,501 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2097 transitions. Word has length 56 [2022-11-25 22:36:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:45,501 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2097 transitions. [2022-11-25 22:36:45,501 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) [2022-11-25 22:36:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2097 transitions. [2022-11-25 22:36:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:36:45,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:45,503 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] [2022-11-25 22:36:45,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:36:45,504 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)] === [2022-11-25 22:36:45,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2012405045, now seen corresponding path program 1 times [2022-11-25 22:36:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:45,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559597378] [2022-11-25 22:36:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:46,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:46,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559597378] [2022-11-25 22:36:46,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559597378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:46,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:46,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:46,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414662657] [2022-11-25 22:36:46,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:46,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:46,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:46,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:46,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:46,075 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) [2022-11-25 22:36:49,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:50,050 INFO L93 Difference]: Finished difference Result 1508 states and 2108 transitions. [2022-11-25 22:36:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:50,051 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 [2022-11-25 22:36:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:50,063 INFO L225 Difference]: With dead ends: 1508 [2022-11-25 22:36:50,063 INFO L226 Difference]: Without dead ends: 1506 [2022-11-25 22:36:50,065 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 [2022-11-25 22:36:50,065 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1493 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:50,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 3745 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 22:36:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2022-11-25 22:36:50,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1497. [2022-11-25 22:36:50,180 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) [2022-11-25 22:36:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2095 transitions. [2022-11-25 22:36:50,190 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2095 transitions. Word has length 61 [2022-11-25 22:36:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:50,191 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2095 transitions. [2022-11-25 22:36:50,191 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) [2022-11-25 22:36:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2095 transitions. [2022-11-25 22:36:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:36:50,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:50,193 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] [2022-11-25 22:36:50,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:36:50,194 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)] === [2022-11-25 22:36:50,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1102868281, now seen corresponding path program 1 times [2022-11-25 22:36:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:50,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282103348] [2022-11-25 22:36:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:50,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:50,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282103348] [2022-11-25 22:36:50,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282103348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:50,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:50,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:50,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558030167] [2022-11-25 22:36:50,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:50,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:50,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:50,745 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) [2022-11-25 22:36:51,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:54,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:36:55,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:55,312 INFO L93 Difference]: Finished difference Result 1506 states and 2106 transitions. [2022-11-25 22:36:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:36:55,313 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 [2022-11-25 22:36:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:55,323 INFO L225 Difference]: With dead ends: 1506 [2022-11-25 22:36:55,323 INFO L226 Difference]: Without dead ends: 1504 [2022-11-25 22:36:55,325 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 [2022-11-25 22:36:55,326 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1490 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:55,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3741 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:36:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-11-25 22:36:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1495. [2022-11-25 22:36:55,437 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) [2022-11-25 22:36:55,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2093 transitions. [2022-11-25 22:36:55,446 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2093 transitions. Word has length 66 [2022-11-25 22:36:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:55,446 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2093 transitions. [2022-11-25 22:36:55,446 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) [2022-11-25 22:36:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2093 transitions. [2022-11-25 22:36:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:36:55,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:55,449 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] [2022-11-25 22:36:55,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:36:55,449 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)] === [2022-11-25 22:36:55,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:55,450 INFO L85 PathProgramCache]: Analyzing trace with hash -262067197, now seen corresponding path program 1 times [2022-11-25 22:36:55,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:55,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603758120] [2022-11-25 22:36:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:55,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:36:55,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:55,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603758120] [2022-11-25 22:36:55,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603758120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:55,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:55,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346647921] [2022-11-25 22:36:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:55,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:55,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:55,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:55,914 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) [2022-11-25 22:36:59,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:00,082 INFO L93 Difference]: Finished difference Result 1504 states and 2104 transitions. [2022-11-25 22:37:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:00,083 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 [2022-11-25 22:37:00,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:00,094 INFO L225 Difference]: With dead ends: 1504 [2022-11-25 22:37:00,094 INFO L226 Difference]: Without dead ends: 1502 [2022-11-25 22:37:00,096 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 [2022-11-25 22:37:00,097 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 1491 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:00,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 22:37:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-11-25 22:37:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1493. [2022-11-25 22:37:00,232 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) [2022-11-25 22:37:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2091 transitions. [2022-11-25 22:37:00,243 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2091 transitions. Word has length 71 [2022-11-25 22:37:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:00,244 INFO L495 AbstractCegarLoop]: Abstraction has 1493 states and 2091 transitions. [2022-11-25 22:37:00,244 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) [2022-11-25 22:37:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2091 transitions. [2022-11-25 22:37:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 22:37:00,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:00,246 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] [2022-11-25 22:37:00,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:37:00,246 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)] === [2022-11-25 22:37:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:00,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1556638598, now seen corresponding path program 1 times [2022-11-25 22:37:00,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:00,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114397308] [2022-11-25 22:37:00,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:00,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:00,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114397308] [2022-11-25 22:37:00,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114397308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:00,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:00,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:00,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776139310] [2022-11-25 22:37:00,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:00,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:00,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:00,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:00,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:00,765 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) [2022-11-25 22:37:04,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:04,934 INFO L93 Difference]: Finished difference Result 1502 states and 2102 transitions. [2022-11-25 22:37:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:04,934 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 [2022-11-25 22:37:04,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:04,944 INFO L225 Difference]: With dead ends: 1502 [2022-11-25 22:37:04,944 INFO L226 Difference]: Without dead ends: 1500 [2022-11-25 22:37:04,946 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 [2022-11-25 22:37:04,947 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 1483 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:04,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:37:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-11-25 22:37:05,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1491. [2022-11-25 22:37:05,130 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) [2022-11-25 22:37:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2089 transitions. [2022-11-25 22:37:05,141 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2089 transitions. Word has length 73 [2022-11-25 22:37:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:05,142 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2089 transitions. [2022-11-25 22:37:05,142 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) [2022-11-25 22:37:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2089 transitions. [2022-11-25 22:37:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 22:37:05,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:05,144 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] [2022-11-25 22:37:05,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:37:05,145 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)] === [2022-11-25 22:37:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash 122327603, now seen corresponding path program 1 times [2022-11-25 22:37:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:05,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913417278] [2022-11-25 22:37:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:05,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:05,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913417278] [2022-11-25 22:37:05,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913417278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:05,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:05,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:05,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421821839] [2022-11-25 22:37:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:05,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:05,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:05,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:05,808 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) [2022-11-25 22:37:09,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:09,874 INFO L93 Difference]: Finished difference Result 1500 states and 2100 transitions. [2022-11-25 22:37:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:09,875 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 [2022-11-25 22:37:09,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:09,884 INFO L225 Difference]: With dead ends: 1500 [2022-11-25 22:37:09,884 INFO L226 Difference]: Without dead ends: 1498 [2022-11-25 22:37:09,885 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 [2022-11-25 22:37:09,886 INFO L413 NwaCegarLoop]: 1608 mSDtfsCounter, 1482 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:09,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3729 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:37:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-11-25 22:37:10,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1489. [2022-11-25 22:37:10,021 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) [2022-11-25 22:37:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2087 transitions. [2022-11-25 22:37:10,031 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2087 transitions. Word has length 78 [2022-11-25 22:37:10,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:10,031 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2087 transitions. [2022-11-25 22:37:10,032 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) [2022-11-25 22:37:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2087 transitions. [2022-11-25 22:37:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 22:37:10,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:10,035 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] [2022-11-25 22:37:10,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:37:10,035 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)] === [2022-11-25 22:37:10,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:10,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1927249736, now seen corresponding path program 1 times [2022-11-25 22:37:10,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:10,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15617546] [2022-11-25 22:37:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:10,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:10,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:10,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15617546] [2022-11-25 22:37:10,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15617546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:10,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:10,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343028280] [2022-11-25 22:37:10,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:10,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:10,513 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) [2022-11-25 22:37:11,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:14,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:15,113 INFO L93 Difference]: Finished difference Result 1498 states and 2098 transitions. [2022-11-25 22:37:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:15,113 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 [2022-11-25 22:37:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:15,121 INFO L225 Difference]: With dead ends: 1498 [2022-11-25 22:37:15,121 INFO L226 Difference]: Without dead ends: 1496 [2022-11-25 22:37:15,122 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 [2022-11-25 22:37:15,123 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1479 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:15,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3725 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:37:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-11-25 22:37:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1487. [2022-11-25 22:37:15,258 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) [2022-11-25 22:37:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2085 transitions. [2022-11-25 22:37:15,267 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2085 transitions. Word has length 83 [2022-11-25 22:37:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:15,267 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2085 transitions. [2022-11-25 22:37:15,267 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) [2022-11-25 22:37:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2085 transitions. [2022-11-25 22:37:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 22:37:15,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:15,269 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] [2022-11-25 22:37:15,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:37:15,270 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)] === [2022-11-25 22:37:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash -240126018, now seen corresponding path program 1 times [2022-11-25 22:37:15,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:15,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220120292] [2022-11-25 22:37:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:15,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:15,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:15,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220120292] [2022-11-25 22:37:15,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220120292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:15,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:15,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:15,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037981043] [2022-11-25 22:37:15,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:15,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:15,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:15,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:15,789 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) [2022-11-25 22:37:19,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:20,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:20,054 INFO L93 Difference]: Finished difference Result 1496 states and 2096 transitions. [2022-11-25 22:37:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:20,055 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 [2022-11-25 22:37:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:20,063 INFO L225 Difference]: With dead ends: 1496 [2022-11-25 22:37:20,064 INFO L226 Difference]: Without dead ends: 1494 [2022-11-25 22:37:20,065 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 [2022-11-25 22:37:20,065 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1476 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:20,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 3721 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:37:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-11-25 22:37:20,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2022-11-25 22:37:20,202 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) [2022-11-25 22:37:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2083 transitions. [2022-11-25 22:37:20,213 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2083 transitions. Word has length 88 [2022-11-25 22:37:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:20,213 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 2083 transitions. [2022-11-25 22:37:20,214 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) [2022-11-25 22:37:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2083 transitions. [2022-11-25 22:37:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 22:37:20,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:20,216 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] [2022-11-25 22:37:20,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:37:20,216 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)] === [2022-11-25 22:37:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1085507144, now seen corresponding path program 1 times [2022-11-25 22:37:20,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:20,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104830702] [2022-11-25 22:37:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:20,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:20,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104830702] [2022-11-25 22:37:20,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104830702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:20,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:20,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:20,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611309202] [2022-11-25 22:37:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:20,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:20,667 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) [2022-11-25 22:37:24,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:24,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:24,361 INFO L93 Difference]: Finished difference Result 1494 states and 2094 transitions. [2022-11-25 22:37:24,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:24,361 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 [2022-11-25 22:37:24,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:24,370 INFO L225 Difference]: With dead ends: 1494 [2022-11-25 22:37:24,370 INFO L226 Difference]: Without dead ends: 1492 [2022-11-25 22:37:24,371 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 [2022-11-25 22:37:24,372 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1473 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:24,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 3717 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 22:37:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-11-25 22:37:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1483. [2022-11-25 22:37:24,519 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) [2022-11-25 22:37:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2081 transitions. [2022-11-25 22:37:24,526 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2081 transitions. Word has length 93 [2022-11-25 22:37:24,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:24,527 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2081 transitions. [2022-11-25 22:37:24,527 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) [2022-11-25 22:37:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2081 transitions. [2022-11-25 22:37:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 22:37:24,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:24,529 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] [2022-11-25 22:37:24,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:37:24,530 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)] === [2022-11-25 22:37:24,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:24,530 INFO L85 PathProgramCache]: Analyzing trace with hash -272412104, now seen corresponding path program 1 times [2022-11-25 22:37:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:24,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442131385] [2022-11-25 22:37:24,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:24,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-25 22:37:25,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:25,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442131385] [2022-11-25 22:37:25,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442131385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:25,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:25,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:37:25,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135218192] [2022-11-25 22:37:25,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:25,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:37:25,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:25,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:37:25,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:37:25,010 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) [2022-11-25 22:37:26,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:28,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:28,925 INFO L93 Difference]: Finished difference Result 2930 states and 4099 transitions. [2022-11-25 22:37:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:37:28,926 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 [2022-11-25 22:37:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:28,937 INFO L225 Difference]: With dead ends: 2930 [2022-11-25 22:37:28,937 INFO L226 Difference]: Without dead ends: 1488 [2022-11-25 22:37:28,944 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 [2022-11-25 22:37:28,945 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1483 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:28,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 2111 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 22:37:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-11-25 22:37:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1479. [2022-11-25 22:37:29,141 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) [2022-11-25 22:37:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2076 transitions. [2022-11-25 22:37:29,150 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2076 transitions. Word has length 106 [2022-11-25 22:37:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:29,150 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 2076 transitions. [2022-11-25 22:37:29,151 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) [2022-11-25 22:37:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2076 transitions. [2022-11-25 22:37:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 22:37:29,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:29,153 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] [2022-11-25 22:37:29,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:37:29,153 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)] === [2022-11-25 22:37:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:29,154 INFO L85 PathProgramCache]: Analyzing trace with hash -701144290, now seen corresponding path program 1 times [2022-11-25 22:37:29,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:29,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121000304] [2022-11-25 22:37:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:29,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:29,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:29,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121000304] [2022-11-25 22:37:29,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121000304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:29,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:29,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312320605] [2022-11-25 22:37:29,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:29,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:29,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:29,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:29,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:29,719 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) [2022-11-25 22:37:33,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:33,525 INFO L93 Difference]: Finished difference Result 1488 states and 2087 transitions. [2022-11-25 22:37:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:33,525 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 [2022-11-25 22:37:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:33,530 INFO L225 Difference]: With dead ends: 1488 [2022-11-25 22:37:33,530 INFO L226 Difference]: Without dead ends: 1486 [2022-11-25 22:37:33,531 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 [2022-11-25 22:37:33,532 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1465 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:33,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 3703 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:37:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-11-25 22:37:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1477. [2022-11-25 22:37:33,684 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) [2022-11-25 22:37:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2074 transitions. [2022-11-25 22:37:33,691 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2074 transitions. Word has length 98 [2022-11-25 22:37:33,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:33,692 INFO L495 AbstractCegarLoop]: Abstraction has 1477 states and 2074 transitions. [2022-11-25 22:37:33,692 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) [2022-11-25 22:37:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2074 transitions. [2022-11-25 22:37:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 22:37:33,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:33,694 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] [2022-11-25 22:37:33,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:37:33,695 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)] === [2022-11-25 22:37:33,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:33,695 INFO L85 PathProgramCache]: Analyzing trace with hash 479637286, now seen corresponding path program 1 times [2022-11-25 22:37:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:33,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747057595] [2022-11-25 22:37:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:33,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:34,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747057595] [2022-11-25 22:37:34,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747057595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:34,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:34,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645961173] [2022-11-25 22:37:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:34,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:34,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:34,243 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) [2022-11-25 22:37:37,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:38,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:38,102 INFO L93 Difference]: Finished difference Result 1486 states and 2085 transitions. [2022-11-25 22:37:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:38,103 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 [2022-11-25 22:37:38,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:38,111 INFO L225 Difference]: With dead ends: 1486 [2022-11-25 22:37:38,111 INFO L226 Difference]: Without dead ends: 1484 [2022-11-25 22:37:38,112 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 [2022-11-25 22:37:38,113 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1462 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:38,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 3699 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:37:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-11-25 22:37:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1475. [2022-11-25 22:37:38,295 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) [2022-11-25 22:37:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2072 transitions. [2022-11-25 22:37:38,302 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2072 transitions. Word has length 103 [2022-11-25 22:37:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:38,303 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2072 transitions. [2022-11-25 22:37:38,303 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) [2022-11-25 22:37:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2072 transitions. [2022-11-25 22:37:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 22:37:38,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:38,305 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] [2022-11-25 22:37:38,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:37:38,306 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)] === [2022-11-25 22:37:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:38,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1607526338, now seen corresponding path program 1 times [2022-11-25 22:37:38,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:38,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512414840] [2022-11-25 22:37:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:38,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-25 22:37:38,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:38,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512414840] [2022-11-25 22:37:38,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512414840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:37:38,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657471370] [2022-11-25 22:37:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:38,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:37:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:37:38,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:37:38,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:37:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:40,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 3629 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:37:40,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:37:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-25 22:37:40,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:37:40,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657471370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:40,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:37:40,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-25 22:37:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852493125] [2022-11-25 22:37:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:40,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:37:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:37:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:37:40,227 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) [2022-11-25 22:37:43,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:43,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:43,472 INFO L93 Difference]: Finished difference Result 2914 states and 4081 transitions. [2022-11-25 22:37:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:37:43,473 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 [2022-11-25 22:37:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:43,481 INFO L225 Difference]: With dead ends: 2914 [2022-11-25 22:37:43,482 INFO L226 Difference]: Without dead ends: 1480 [2022-11-25 22:37:43,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:37:43,494 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1451 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:43,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2102 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 22:37:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-11-25 22:37:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1471. [2022-11-25 22:37:43,779 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) [2022-11-25 22:37:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2067 transitions. [2022-11-25 22:37:43,787 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2067 transitions. Word has length 114 [2022-11-25 22:37:43,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:43,789 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 2067 transitions. [2022-11-25 22:37:43,789 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) [2022-11-25 22:37:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2067 transitions. [2022-11-25 22:37:43,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 22:37:43,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:43,793 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] [2022-11-25 22:37:43,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:37:44,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 22:37:44,006 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)] === [2022-11-25 22:37:44,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash 728814034, now seen corresponding path program 1 times [2022-11-25 22:37:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:44,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429040391] [2022-11-25 22:37:44,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:44,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:44,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429040391] [2022-11-25 22:37:44,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429040391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:44,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:44,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038648041] [2022-11-25 22:37:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:44,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:44,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:44,997 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) [2022-11-25 22:37:48,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:49,280 INFO L93 Difference]: Finished difference Result 1480 states and 2078 transitions. [2022-11-25 22:37:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:49,281 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 [2022-11-25 22:37:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:49,290 INFO L225 Difference]: With dead ends: 1480 [2022-11-25 22:37:49,290 INFO L226 Difference]: Without dead ends: 1478 [2022-11-25 22:37:49,291 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 [2022-11-25 22:37:49,292 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 1454 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:49,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 3685 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:37:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-11-25 22:37:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1469. [2022-11-25 22:37:49,485 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) [2022-11-25 22:37:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2065 transitions. [2022-11-25 22:37:49,492 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2065 transitions. Word has length 108 [2022-11-25 22:37:49,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:49,493 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2065 transitions. [2022-11-25 22:37:49,493 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) [2022-11-25 22:37:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2065 transitions. [2022-11-25 22:37:49,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 22:37:49,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:49,495 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] [2022-11-25 22:37:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:37:49,496 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)] === [2022-11-25 22:37:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1643857323, now seen corresponding path program 1 times [2022-11-25 22:37:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:49,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565012813] [2022-11-25 22:37:49,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:49,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:49,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:49,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565012813] [2022-11-25 22:37:49,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565012813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:49,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:49,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409512134] [2022-11-25 22:37:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:49,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:49,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:49,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:49,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:49,974 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) [2022-11-25 22:37:54,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:54,314 INFO L93 Difference]: Finished difference Result 1478 states and 2076 transitions. [2022-11-25 22:37:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:54,315 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 [2022-11-25 22:37:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:54,322 INFO L225 Difference]: With dead ends: 1478 [2022-11-25 22:37:54,323 INFO L226 Difference]: Without dead ends: 1476 [2022-11-25 22:37:54,324 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 [2022-11-25 22:37:54,325 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 1451 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:54,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 3681 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 22:37:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-11-25 22:37:54,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2022-11-25 22:37:54,481 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) [2022-11-25 22:37:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2063 transitions. [2022-11-25 22:37:54,488 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2063 transitions. Word has length 113 [2022-11-25 22:37:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:54,489 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2063 transitions. [2022-11-25 22:37:54,489 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) [2022-11-25 22:37:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2063 transitions. [2022-11-25 22:37:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 22:37:54,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:54,492 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] [2022-11-25 22:37:54,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 22:37:54,492 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)] === [2022-11-25 22:37:54,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:54,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1644301992, now seen corresponding path program 1 times [2022-11-25 22:37:54,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:54,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859318321] [2022-11-25 22:37:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:54,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:54,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859318321] [2022-11-25 22:37:54,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859318321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:54,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:54,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:54,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676196506] [2022-11-25 22:37:54,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:54,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:54,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:54,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:54,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:54,942 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) [2022-11-25 22:37:58,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:59,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:59,107 INFO L93 Difference]: Finished difference Result 1476 states and 2074 transitions. [2022-11-25 22:37:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:37:59,108 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 [2022-11-25 22:37:59,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:59,116 INFO L225 Difference]: With dead ends: 1476 [2022-11-25 22:37:59,116 INFO L226 Difference]: Without dead ends: 1474 [2022-11-25 22:37:59,117 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 [2022-11-25 22:37:59,118 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1448 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:59,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3677 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:37:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-11-25 22:37:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-11-25 22:37:59,289 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) [2022-11-25 22:37:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2061 transitions. [2022-11-25 22:37:59,297 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2061 transitions. Word has length 118 [2022-11-25 22:37:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2061 transitions. [2022-11-25 22:37:59,298 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) [2022-11-25 22:37:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2061 transitions. [2022-11-25 22:37:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 22:37:59,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:59,301 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] [2022-11-25 22:37:59,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 22:37:59,302 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)] === [2022-11-25 22:37:59,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash -636637093, now seen corresponding path program 1 times [2022-11-25 22:37:59,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:59,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758623932] [2022-11-25 22:37:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:37:59,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:59,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758623932] [2022-11-25 22:37:59,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758623932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:59,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:59,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413415689] [2022-11-25 22:37:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:59,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:59,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:59,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:59,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:59,879 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) [2022-11-25 22:38:03,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:03,967 INFO L93 Difference]: Finished difference Result 1474 states and 2072 transitions. [2022-11-25 22:38:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:38:03,968 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 [2022-11-25 22:38:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:03,973 INFO L225 Difference]: With dead ends: 1474 [2022-11-25 22:38:03,973 INFO L226 Difference]: Without dead ends: 1472 [2022-11-25 22:38:03,974 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 [2022-11-25 22:38:03,975 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1445 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:03,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 3673 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 22:38:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-25 22:38:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1463. [2022-11-25 22:38:04,179 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) [2022-11-25 22:38:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2059 transitions. [2022-11-25 22:38:04,187 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2059 transitions. Word has length 123 [2022-11-25 22:38:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:04,187 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2059 transitions. [2022-11-25 22:38:04,188 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) [2022-11-25 22:38:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2059 transitions. [2022-11-25 22:38:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 22:38:04,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:04,191 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] [2022-11-25 22:38:04,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 22:38:04,191 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)] === [2022-11-25 22:38:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1135459803, now seen corresponding path program 1 times [2022-11-25 22:38:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:04,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003507325] [2022-11-25 22:38:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:04,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:05,237 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-25 22:38:05,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:05,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003507325] [2022-11-25 22:38:05,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003507325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:05,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71731161] [2022-11-25 22:38:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:05,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:05,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:05,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:38:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:06,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 22:38:06,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 22:38:06,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:06,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71731161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:06,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:06,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-25 22:38:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424133953] [2022-11-25 22:38:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:06,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:06,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:06,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:06,806 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) [2022-11-25 22:38:12,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:13,099 INFO L93 Difference]: Finished difference Result 2893 states and 4094 transitions. [2022-11-25 22:38:13,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:13,100 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 [2022-11-25 22:38:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:13,107 INFO L225 Difference]: With dead ends: 2893 [2022-11-25 22:38:13,107 INFO L226 Difference]: Without dead ends: 1471 [2022-11-25 22:38:13,114 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 [2022-11-25 22:38:13,114 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 2 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6049 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:13,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6049 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 22:38:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2022-11-25 22:38:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1467. [2022-11-25 22:38:13,267 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) [2022-11-25 22:38:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2068 transitions. [2022-11-25 22:38:13,274 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2068 transitions. Word has length 139 [2022-11-25 22:38:13,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:13,275 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2068 transitions. [2022-11-25 22:38:13,275 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) [2022-11-25 22:38:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2068 transitions. [2022-11-25 22:38:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 22:38:13,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:13,278 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] [2022-11-25 22:38:13,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:38:13,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:13,493 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)] === [2022-11-25 22:38:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash 341189496, now seen corresponding path program 1 times [2022-11-25 22:38:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:13,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635929708] [2022-11-25 22:38:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:38:13,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:13,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635929708] [2022-11-25 22:38:13,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635929708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:13,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:13,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:38:13,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747189333] [2022-11-25 22:38:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:13,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:38:13,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:13,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:38:13,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:38:13,976 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) [2022-11-25 22:38:15,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:18,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:18,593 INFO L93 Difference]: Finished difference Result 1476 states and 2079 transitions. [2022-11-25 22:38:18,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:38:18,593 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 [2022-11-25 22:38:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:18,599 INFO L225 Difference]: With dead ends: 1476 [2022-11-25 22:38:18,599 INFO L226 Difference]: Without dead ends: 1474 [2022-11-25 22:38:18,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:18,601 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1442 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:18,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 3669 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:38:18,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-11-25 22:38:18,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-11-25 22:38:18,757 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) [2022-11-25 22:38:18,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2066 transitions. [2022-11-25 22:38:18,764 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2066 transitions. Word has length 128 [2022-11-25 22:38:18,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:18,765 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2066 transitions. [2022-11-25 22:38:18,765 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) [2022-11-25 22:38:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2066 transitions. [2022-11-25 22:38:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:38:18,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:18,768 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] [2022-11-25 22:38:18,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 22:38:18,768 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)] === [2022-11-25 22:38:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash -967463382, now seen corresponding path program 1 times [2022-11-25 22:38:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:18,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727068129] [2022-11-25 22:38:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:18,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:38:19,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727068129] [2022-11-25 22:38:19,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727068129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:19,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:19,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:38:19,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776284409] [2022-11-25 22:38:19,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:19,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:38:19,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:19,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:38:19,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:38:19,238 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) [2022-11-25 22:38:22,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:23,065 INFO L93 Difference]: Finished difference Result 1474 states and 2077 transitions. [2022-11-25 22:38:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:38:23,065 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 [2022-11-25 22:38:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:23,071 INFO L225 Difference]: With dead ends: 1474 [2022-11-25 22:38:23,071 INFO L226 Difference]: Without dead ends: 1347 [2022-11-25 22:38:23,073 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 [2022-11-25 22:38:23,073 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1439 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:23,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 3667 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:38:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-25 22:38:23,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1338. [2022-11-25 22:38:23,228 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) [2022-11-25 22:38:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1916 transitions. [2022-11-25 22:38:23,235 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1916 transitions. Word has length 133 [2022-11-25 22:38:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:23,236 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1916 transitions. [2022-11-25 22:38:23,236 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) [2022-11-25 22:38:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1916 transitions. [2022-11-25 22:38:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-25 22:38:23,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:23,240 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-11-25 22:38:23,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 22:38:23,240 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)] === [2022-11-25 22:38:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:23,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1474063305, now seen corresponding path program 1 times [2022-11-25 22:38:23,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:23,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418211006] [2022-11-25 22:38:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:23,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-11-25 22:38:24,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:24,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418211006] [2022-11-25 22:38:24,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418211006] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:24,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156410919] [2022-11-25 22:38:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:24,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:24,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:24,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:24,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:38:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:25,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 4148 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 22:38:25,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-11-25 22:38:25,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:25,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156410919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:25,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:25,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-25 22:38:25,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474876858] [2022-11-25 22:38:25,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:25,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:25,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:25,975 INFO L87 Difference]: Start difference. First operand 1338 states and 1916 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 22:38:30,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:31,004 INFO L93 Difference]: Finished difference Result 2663 states and 3845 transitions. [2022-11-25 22:38:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:31,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2022-11-25 22:38:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:31,009 INFO L225 Difference]: With dead ends: 2663 [2022-11-25 22:38:31,009 INFO L226 Difference]: Without dead ends: 1344 [2022-11-25 22:38:31,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:31,015 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 2 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:31,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5547 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:38:31,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-11-25 22:38:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1340. [2022-11-25 22:38:31,178 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) [2022-11-25 22:38:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1918 transitions. [2022-11-25 22:38:31,185 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1918 transitions. Word has length 196 [2022-11-25 22:38:31,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:31,186 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1918 transitions. [2022-11-25 22:38:31,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 22:38:31,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1918 transitions. [2022-11-25 22:38:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 22:38:31,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:31,189 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] [2022-11-25 22:38:31,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 22:38:31,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 22:38:31,405 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)] === [2022-11-25 22:38:31,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1700765207, now seen corresponding path program 1 times [2022-11-25 22:38:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:31,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144475122] [2022-11-25 22:38:31,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-25 22:38:33,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:33,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144475122] [2022-11-25 22:38:33,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144475122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:33,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:33,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:33,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436860780] [2022-11-25 22:38:33,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:33,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:33,308 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) [2022-11-25 22:38:34,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:39,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:39,379 INFO L93 Difference]: Finished difference Result 2665 states and 3843 transitions. [2022-11-25 22:38:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:39,380 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 [2022-11-25 22:38:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:39,386 INFO L225 Difference]: With dead ends: 2665 [2022-11-25 22:38:39,386 INFO L226 Difference]: Without dead ends: 1344 [2022-11-25 22:38:39,390 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 [2022-11-25 22:38:39,390 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 0 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:39,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5527 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 22:38:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-11-25 22:38:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1342. [2022-11-25 22:38:39,527 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) [2022-11-25 22:38:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1920 transitions. [2022-11-25 22:38:39,534 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1920 transitions. Word has length 165 [2022-11-25 22:38:39,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:39,535 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1920 transitions. [2022-11-25 22:38:39,535 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) [2022-11-25 22:38:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1920 transitions. [2022-11-25 22:38:39,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-25 22:38:39,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:39,538 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] [2022-11-25 22:38:39,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 22:38:39,538 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)] === [2022-11-25 22:38:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1683060701, now seen corresponding path program 2 times [2022-11-25 22:38:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:39,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355938937] [2022-11-25 22:38:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-11-25 22:38:40,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355938937] [2022-11-25 22:38:40,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355938937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:40,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:40,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:38:40,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745230411] [2022-11-25 22:38:40,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:40,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:38:40,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:40,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:38:40,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:40,835 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) [2022-11-25 22:38:42,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:47,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:48,693 INFO L93 Difference]: Finished difference Result 1351 states and 1931 transitions. [2022-11-25 22:38:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:38:48,694 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 [2022-11-25 22:38:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:48,701 INFO L225 Difference]: With dead ends: 1351 [2022-11-25 22:38:48,701 INFO L226 Difference]: Without dead ends: 1349 [2022-11-25 22:38:48,703 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 [2022-11-25 22:38:48,703 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1284 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 7.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:48,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 5645 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-25 22:38:48,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-11-25 22:38:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1342. [2022-11-25 22:38:48,850 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) [2022-11-25 22:38:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1919 transitions. [2022-11-25 22:38:48,855 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1919 transitions. Word has length 222 [2022-11-25 22:38:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:48,856 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1919 transitions. [2022-11-25 22:38:48,856 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) [2022-11-25 22:38:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1919 transitions. [2022-11-25 22:38:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-25 22:38:48,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:48,859 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 22:38:48,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 22:38:48,860 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)] === [2022-11-25 22:38:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1767562018, now seen corresponding path program 1 times [2022-11-25 22:38:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:48,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983284560] [2022-11-25 22:38:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-25 22:38:49,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:49,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983284560] [2022-11-25 22:38:49,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983284560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:49,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:49,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:38:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191435370] [2022-11-25 22:38:49,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:49,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:38:49,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:49,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:38:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:49,229 INFO L87 Difference]: Start difference. First operand 1342 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:38:52,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:52,690 INFO L93 Difference]: Finished difference Result 2668 states and 3848 transitions. [2022-11-25 22:38:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:38:52,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 181 [2022-11-25 22:38:52,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:52,697 INFO L225 Difference]: With dead ends: 2668 [2022-11-25 22:38:52,698 INFO L226 Difference]: Without dead ends: 1345 [2022-11-25 22:38:52,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:52,704 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1271 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 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, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:52,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1962 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 22:38:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-11-25 22:38:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1340. [2022-11-25 22:38:52,925 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) [2022-11-25 22:38:52,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1915 transitions. [2022-11-25 22:38:52,933 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1915 transitions. Word has length 181 [2022-11-25 22:38:52,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:52,934 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1915 transitions. [2022-11-25 22:38:52,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:38:52,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1915 transitions. [2022-11-25 22:38:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-11-25 22:38:52,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:52,946 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] [2022-11-25 22:38:52,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 22:38:52,946 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)] === [2022-11-25 22:38:52,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:52,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1906203432, now seen corresponding path program 1 times [2022-11-25 22:38:52,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:52,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084521995] [2022-11-25 22:38:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4299 trivial. 0 not checked. [2022-11-25 22:38:54,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:54,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084521995] [2022-11-25 22:38:54,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084521995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:54,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:54,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:54,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101133356] [2022-11-25 22:38:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:54,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:54,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:54,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:54,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:54,516 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) [2022-11-25 22:38:58,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:59,079 INFO L93 Difference]: Finished difference Result 1422 states and 2022 transitions. [2022-11-25 22:38:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:59,080 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 [2022-11-25 22:38:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:59,085 INFO L225 Difference]: With dead ends: 1422 [2022-11-25 22:38:59,085 INFO L226 Difference]: Without dead ends: 1420 [2022-11-25 22:38:59,086 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 [2022-11-25 22:38:59,087 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1142 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 4909 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 682 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 22:38:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-11-25 22:38:59,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1415. [2022-11-25 22:38:59,281 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) [2022-11-25 22:38:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2011 transitions. [2022-11-25 22:38:59,288 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2011 transitions. Word has length 477 [2022-11-25 22:38:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:59,289 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 2011 transitions. [2022-11-25 22:38:59,289 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) [2022-11-25 22:38:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2011 transitions. [2022-11-25 22:38:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-11-25 22:38:59,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:59,303 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 10, 8, 8, 8, 8, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:59,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 22:38:59,304 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)] === [2022-11-25 22:38:59,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:59,304 INFO L85 PathProgramCache]: Analyzing trace with hash 399847896, now seen corresponding path program 1 times [2022-11-25 22:38:59,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:59,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025199743] [2022-11-25 22:38:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:59,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3765 trivial. 0 not checked. [2022-11-25 22:39:00,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:00,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025199743] [2022-11-25 22:39:00,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025199743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:39:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393922809] [2022-11-25 22:39:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:39:00,450 INFO L87 Difference]: Start difference. First operand 1415 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-25 22:39:04,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:05,085 INFO L93 Difference]: Finished difference Result 2998 states and 4328 transitions. [2022-11-25 22:39:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:39:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 755 [2022-11-25 22:39:05,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:05,092 INFO L225 Difference]: With dead ends: 2998 [2022-11-25 22:39:05,092 INFO L226 Difference]: Without dead ends: 1602 [2022-11-25 22:39:05,099 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 [2022-11-25 22:39:05,099 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 126 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:05,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 4216 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:39:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-11-25 22:39:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1447. [2022-11-25 22:39:05,386 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) [2022-11-25 22:39:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2061 transitions. [2022-11-25 22:39:05,392 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2061 transitions. Word has length 755 [2022-11-25 22:39:05,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:05,393 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2061 transitions. [2022-11-25 22:39:05,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-25 22:39:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2061 transitions. [2022-11-25 22:39:05,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-11-25 22:39:05,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:05,411 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] [2022-11-25 22:39:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 22:39:05,412 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)] === [2022-11-25 22:39:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash -464693247, now seen corresponding path program 1 times [2022-11-25 22:39:05,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:05,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67281326] [2022-11-25 22:39:05,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:05,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4218 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2022-11-25 22:39:06,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:06,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67281326] [2022-11-25 22:39:06,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67281326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:06,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:06,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:39:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882563175] [2022-11-25 22:39:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:06,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:06,539 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) [2022-11-25 22:39:10,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:10,595 INFO L93 Difference]: Finished difference Result 2881 states and 4142 transitions. [2022-11-25 22:39:10,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:10,596 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 [2022-11-25 22:39:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:10,606 INFO L225 Difference]: With dead ends: 2881 [2022-11-25 22:39:10,606 INFO L226 Difference]: Without dead ends: 1453 [2022-11-25 22:39:10,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:10,616 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:10,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2761 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 22:39:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-11-25 22:39:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1449. [2022-11-25 22:39:10,949 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) [2022-11-25 22:39:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2063 transitions. [2022-11-25 22:39:10,956 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2063 transitions. Word has length 878 [2022-11-25 22:39:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:10,958 INFO L495 AbstractCegarLoop]: Abstraction has 1449 states and 2063 transitions. [2022-11-25 22:39:10,958 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) [2022-11-25 22:39:10,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2063 transitions. [2022-11-25 22:39:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2022-11-25 22:39:10,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:10,975 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 17, 17, 15, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1] [2022-11-25 22:39:10,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 22:39:10,976 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)] === [2022-11-25 22:39:10,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash -117260633, now seen corresponding path program 1 times [2022-11-25 22:39:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:10,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704276168] [2022-11-25 22:39:10,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:10,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4527 trivial. 0 not checked. [2022-11-25 22:39:12,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:12,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704276168] [2022-11-25 22:39:12,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704276168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:39:12,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995599447] [2022-11-25 22:39:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:12,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:12,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:12,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:12,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4db423e-f216-4b44-a27f-c45bb978b739/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:39:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:14,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 8798 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:39:14,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 1443 proven. 1 refuted. 0 times theorem prover too weak. 3111 trivial. 0 not checked. [2022-11-25 22:39:14,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4527 trivial. 0 not checked. [2022-11-25 22:39:16,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995599447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:16,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [612673464] [2022-11-25 22:39:16,125 INFO L159 IcfgInterpreter]: Started Sifa with 250 locations of interest [2022-11-25 22:39:16,126 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:39:16,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:39:16,140 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:39:16,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:39:25,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:25,925 INFO L217 Elim1Store]: Index analysis took 155 ms [2022-11-25 22:39:26,211 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 [2022-11-25 22:39:27,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,070 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 [2022-11-25 22:39:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:27,255 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 [2022-11-25 22:39:28,771 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 [2022-11-25 22:39:33,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:33,288 INFO L217 Elim1Store]: Index analysis took 300 ms [2022-11-25 22:39:33,721 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 [2022-11-25 22:39:34,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,311 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 [2022-11-25 22:39:34,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:34,825 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 [2022-11-25 22:39:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,439 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 [2022-11-25 22:39:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,729 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 [2022-11-25 22:39:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:35,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:36,044 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 [2022-11-25 22:46:20,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:46:20,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:47:35,053 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 22:47:35,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16039 treesize of output 16037 [2022-11-25 22:47:39,976 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 22:47:39,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16034 treesize of output 16034