./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--video--fbdev--udlfb.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_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/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_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/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_fe1f6008-5b5c-420c-8384-74f23c9447de/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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- 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 22:19:42,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:19:42,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:19:43,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:19:43,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:19:43,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:19:43,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:19:43,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:19:43,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:19:43,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:19:43,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:19:43,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:19:43,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:19:43,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:19:43,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:19:43,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:19:43,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:19:43,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:19:43,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:19:43,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:19:43,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:19:43,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:19:43,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:19:43,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:19:43,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:19:43,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:19:43,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:19:43,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:19:43,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:19:43,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:19:43,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:19:43,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:19:43,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:19:43,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:19:43,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:19:43,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:19:43,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:19:43,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:19:43,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:19:43,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:19:43,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:19:43,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:19:43,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:19:43,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:19:43,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:19:43,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:19:43,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:19:43,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:19:43,136 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:19:43,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:19:43,137 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:19:43,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:19:43,138 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:19:43,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:19:43,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:19:43,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:19:43,139 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:19:43,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:19:43,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:19:43,140 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:19:43,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:19:43,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:19:43,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:19:43,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:19:43,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:19:43,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:19:43,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:19:43,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:19:43,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:19:43,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:19:43,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:19:43,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:43,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:19:43,144 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:19:43,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:19:43,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:19:43,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:19:43,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:19:43,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:19:43,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:19:43,145 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_fe1f6008-5b5c-420c-8384-74f23c9447de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2022-11-25 22:19:43,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:19:43,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:19:43,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:19:43,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:19:43,458 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:19:43,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-25 22:19:46,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:19:47,086 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:19:47,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-25 22:19:47,141 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/data/53acbabf8/d1be48aaed694aa387c4a1b1e880d000/FLAG759cc02a7 [2022-11-25 22:19:47,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/data/53acbabf8/d1be48aaed694aa387c4a1b1e880d000 [2022-11-25 22:19:47,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:19:47,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:19:47,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:47,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:19:47,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:19:47,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:47" (1/1) ... [2022-11-25 22:19:47,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a4323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:47, skipping insertion in model container [2022-11-25 22:19:47,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:47" (1/1) ... [2022-11-25 22:19:47,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:19:47,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:19:48,363 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:19:48,374 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:19:48,513 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:19:48,531 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:19:48,544 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:19:48,593 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 22:19:48,675 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:19:48,675 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:19:48,676 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:19:48,677 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 22:19:48,685 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:19:48,686 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:19:48,689 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:19:48,689 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 22:19:48,704 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:49,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,099 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-11-25 22:19:49,100 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-11-25 22:19:49,163 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-11-25 22:19:49,169 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-11-25 22:19:49,175 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-11-25 22:19:49,181 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-11-25 22:19:49,197 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 22:19:49,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,199 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,221 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-11-25 22:19:49,221 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,227 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:49,227 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,233 WARN L623 FunctionHandler]: Unknown extern function up [2022-11-25 22:19:49,239 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:19:49,239 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:19:49,240 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:49,240 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-11-25 22:19:49,241 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:19:49,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,252 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-11-25 22:19:49,252 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,270 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-11-25 22:19:49,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,297 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,298 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:49,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,300 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:49,305 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-11-25 22:19:49,306 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:49,307 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,308 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:49,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,309 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:49,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,310 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-11-25 22:19:49,311 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-11-25 22:19:49,313 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-11-25 22:19:49,314 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-11-25 22:19:49,315 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-11-25 22:19:49,316 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,352 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:19:49,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,368 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 22:19:49,374 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-11-25 22:19:49,374 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-11-25 22:19:49,375 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,377 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,378 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,378 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,379 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,388 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:19:49,389 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,390 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,390 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,393 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:49,394 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:49,395 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:49,397 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-11-25 22:19:49,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,398 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-11-25 22:19:49,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,399 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:49,399 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:49,400 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:49,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,402 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,402 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:19:49,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,403 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-11-25 22:19:49,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,404 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,410 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:19:49,410 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-11-25 22:19:49,411 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-11-25 22:19:49,425 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,426 WARN L623 FunctionHandler]: Unknown extern function up [2022-11-25 22:19:49,427 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,428 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-11-25 22:19:49,435 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,440 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:19:49,441 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:49,441 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:49,442 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:49,442 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,445 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:49,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,449 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-11-25 22:19:49,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:49,750 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-11-25 22:19:49,788 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:19:49,794 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-11-25 22:19:49,796 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-11-25 22:19:49,796 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 22:19:49,797 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 22:19:49,797 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:49,798 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:49,800 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:49,801 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:19:50,217 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:19:50,436 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:19:51,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-25 22:19:51,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-25 22:19:51,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-25 22:19:51,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-25 22:19:51,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-25 22:19:51,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-25 22:19:51,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-25 22:19:51,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-25 22:19:51,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-25 22:19:51,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-25 22:19:51,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-25 22:19:51,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-25 22:19:51,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-25 22:19:51,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-25 22:19:51,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-25 22:19:51,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-25 22:19:51,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-25 22:19:51,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-25 22:19:51,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-25 22:19:51,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-25 22:19:51,050 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-25 22:19:51,050 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-25 22:19:51,053 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-25 22:19:51,053 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-25 22:19:51,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-25 22:19:51,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-25 22:19:51,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-25 22:19:51,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-25 22:19:51,056 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-25 22:19:51,056 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-25 22:19:51,070 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-25 22:19:51,070 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-25 22:19:51,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-25 22:19:51,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-25 22:19:51,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-25 22:19:51,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-25 22:19:51,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-25 22:19:51,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-25 22:19:51,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-25 22:19:51,074 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-25 22:19:51,074 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-25 22:19:51,074 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-25 22:19:51,075 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-25 22:19:51,075 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-25 22:19:51,076 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-25 22:19:51,076 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-25 22:19:51,077 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-25 22:19:51,077 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-25 22:19:51,077 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-25 22:19:51,078 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-25 22:19:51,078 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-25 22:19:51,078 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-25 22:19:51,079 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-25 22:19:51,079 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-25 22:19:51,080 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-25 22:19:51,080 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-25 22:19:51,080 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-25 22:19:51,081 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-25 22:19:51,081 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-25 22:19:51,084 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-25 22:19:51,085 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-25 22:19:51,085 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-25 22:19:51,086 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-25 22:19:51,086 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-25 22:19:51,087 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-25 22:19:51,089 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-25 22:19:51,089 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-25 22:19:51,090 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-25 22:19:51,090 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-25 22:19:51,090 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-25 22:19:51,091 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-25 22:19:51,091 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-25 22:19:51,092 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-25 22:19:51,092 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-25 22:19:51,093 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-25 22:19:51,094 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-25 22:19:51,094 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-25 22:19:51,095 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-25 22:19:51,095 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-25 22:19:51,096 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-25 22:19:51,096 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-25 22:19:51,096 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-25 22:19:51,097 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-25 22:19:51,097 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-25 22:19:51,097 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-25 22:19:51,098 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-25 22:19:51,098 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-25 22:19:51,099 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_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-25 22:19:51,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:51,167 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:19:51,271 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:19:51,271 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:19:51,273 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:19:51,275 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:19:51,276 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:19:51,277 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 22:19:51,280 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:19:51,283 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:19:51,283 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:19:51,283 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 22:19:51,284 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:19:51,284 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:19:51,285 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:19:51,285 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 22:19:51,288 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:51,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,312 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-11-25 22:19:51,312 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-11-25 22:19:51,339 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-11-25 22:19:51,341 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-11-25 22:19:51,342 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-11-25 22:19:51,342 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-11-25 22:19:51,347 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 22:19:51,348 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,349 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,356 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-11-25 22:19:51,356 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,357 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:51,357 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,358 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,358 WARN L623 FunctionHandler]: Unknown extern function up [2022-11-25 22:19:51,359 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:19:51,360 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:19:51,360 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:51,360 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-11-25 22:19:51,361 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:19:51,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,364 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-11-25 22:19:51,365 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,367 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,372 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-11-25 22:19:51,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,377 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,379 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,379 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,380 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:51,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,381 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:19:51,383 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-11-25 22:19:51,386 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:51,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,387 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:51,388 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,388 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:19:51,389 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,389 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-11-25 22:19:51,390 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-11-25 22:19:51,391 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-11-25 22:19:51,397 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-11-25 22:19:51,397 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-11-25 22:19:51,400 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,404 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,406 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:19:51,406 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,415 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 22:19:51,416 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-11-25 22:19:51,417 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-11-25 22:19:51,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,421 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,422 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:19:51,422 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,464 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,466 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:51,467 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:51,467 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:51,468 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-11-25 22:19:51,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,469 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-11-25 22:19:51,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,470 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:51,470 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:51,471 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:51,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,472 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,472 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:19:51,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,476 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-11-25 22:19:51,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,482 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,482 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 22:19:51,483 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-11-25 22:19:51,483 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-11-25 22:19:51,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,495 WARN L623 FunctionHandler]: Unknown extern function up [2022-11-25 22:19:51,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,496 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-11-25 22:19:51,497 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,498 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:19:51,501 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:19:51,502 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:19:51,502 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:19:51,505 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,505 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:19:51,506 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,507 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-11-25 22:19:51,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:19:51,518 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-11-25 22:19:51,547 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:19:51,547 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-11-25 22:19:51,548 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-11-25 22:19:51,549 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 22:19:51,549 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 22:19:51,549 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:51,550 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:51,552 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:51,553 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:19:51,569 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:19:51,579 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:19:51,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-25 22:19:51,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-25 22:19:51,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-25 22:19:51,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-25 22:19:51,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-25 22:19:51,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-25 22:19:51,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-25 22:19:51,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-25 22:19:51,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-25 22:19:51,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-25 22:19:51,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-25 22:19:51,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-25 22:19:51,609 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-25 22:19:51,609 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-25 22:19:51,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-25 22:19:51,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-25 22:19:51,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-25 22:19:51,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-25 22:19:51,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-25 22:19:51,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-25 22:19:51,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-25 22:19:51,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-25 22:19:51,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-25 22:19:51,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-25 22:19:51,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-25 22:19:51,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-25 22:19:51,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-25 22:19:51,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-25 22:19:51,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-25 22:19:51,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-25 22:19:51,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-25 22:19:51,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-25 22:19:51,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-25 22:19:51,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-25 22:19:51,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-25 22:19:51,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-25 22:19:51,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-25 22:19:51,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-25 22:19:51,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-25 22:19:51,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-25 22:19:51,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-25 22:19:51,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-25 22:19:51,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-25 22:19:51,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-25 22:19:51,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-25 22:19:51,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-25 22:19:51,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-25 22:19:51,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-25 22:19:51,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-25 22:19:51,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-25 22:19:51,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-25 22:19:51,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-25 22:19:51,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-25 22:19:51,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-25 22:19:51,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-25 22:19:51,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-25 22:19:51,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-25 22:19:51,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-25 22:19:51,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-25 22:19:51,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-25 22:19:51,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-25 22:19:51,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-25 22:19:51,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-25 22:19:51,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-25 22:19:51,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-25 22:19:51,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-25 22:19:51,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-25 22:19:51,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-25 22:19:51,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-25 22:19:51,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-25 22:19:51,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-25 22:19:51,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-25 22:19:51,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-25 22:19:51,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-25 22:19:51,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-25 22:19:51,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-25 22:19:51,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-25 22:19:51,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-25 22:19:51,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-25 22:19:51,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-25 22:19:51,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-25 22:19:51,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-25 22:19:51,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-25 22:19:51,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-25 22:19:51,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-25 22:19:51,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-25 22:19:51,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-25 22:19:51,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-25 22:19:51,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:51,972 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:19:51,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51 WrapperNode [2022-11-25 22:19:51,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:51,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:51,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:19:51,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:19:51,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,454 INFO L138 Inliner]: procedures = 635, calls = 2089, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4943 [2022-11-25 22:19:52,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:52,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:19:52,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:19:52,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:19:52,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:52,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:19:52,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:19:52,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:19:52,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:19:52,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (1/1) ... [2022-11-25 22:19:53,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:53,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:53,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:19:53,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:19:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 22:19:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 22:19:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-11-25 22:19:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-11-25 22:19:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:19:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:19:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:19:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:19:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-11-25 22:19:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-11-25 22:19:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-25 22:19:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-25 22:19:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:19:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:19:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:19:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:19:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:19:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:19:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-25 22:19:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-25 22:19:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:19:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:19:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:19:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:19:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2022-11-25 22:19:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:19:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-25 22:19:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:19:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:19:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:19:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-11-25 22:19:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-11-25 22:19:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:19:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-25 22:19:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-25 22:19:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-11-25 22:19:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-11-25 22:19:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 22:19:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 22:19:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-11-25 22:19:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:19:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 22:19:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-11-25 22:19:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-25 22:19:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-25 22:19:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:19:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 22:19:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 22:19:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:19:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:19:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-25 22:19:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-25 22:19:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:19:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:19:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:19:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:19:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:19:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 22:19:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 22:19:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-11-25 22:19:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-11-25 22:19:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:19:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:19:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:19:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:19:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-11-25 22:19:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-11-25 22:19:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 22:19:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 22:19:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 22:19:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 22:19:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-25 22:19:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-25 22:19:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-25 22:19:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-25 22:19:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:19:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:19:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-25 22:19:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-25 22:19:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:19:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:19:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:19:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-11-25 22:19:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-11-25 22:19:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:19:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:19:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:19:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:19:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:19:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:19:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-25 22:19:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-25 22:19:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-11-25 22:19:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-11-25 22:19:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:19:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:19:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-25 22:19:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-25 22:19:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-25 22:19:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-25 22:19:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-11-25 22:19:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-11-25 22:19:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 22:19:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 22:19:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 22:19:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 22:19:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:19:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:19:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-25 22:19:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-25 22:19:53,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-25 22:19:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-25 22:19:53,085 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-25 22:19:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-25 22:19:53,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:19:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:19:53,085 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-25 22:19:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-25 22:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-11-25 22:19:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-11-25 22:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:19:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:19:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:19:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:19:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-11-25 22:19:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-11-25 22:19:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-11-25 22:19:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-11-25 22:19:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-11-25 22:19:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-11-25 22:19:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-11-25 22:19:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-11-25 22:19:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 22:19:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 22:19:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-11-25 22:19:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-11-25 22:19:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-25 22:19:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-25 22:19:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 22:19:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 22:19:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:19:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:19:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-11-25 22:19:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-11-25 22:19:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-11-25 22:19:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-11-25 22:19:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2022-11-25 22:19:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2022-11-25 22:19:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-11-25 22:19:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-11-25 22:19:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:19:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:19:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-25 22:19:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-25 22:19:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-11-25 22:19:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-11-25 22:19:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:19:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:19:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:19:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 22:19:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 22:19:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:19:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:19:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-11-25 22:19:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-11-25 22:19:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-25 22:19:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-25 22:19:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:19:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-25 22:19:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-25 22:19:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:19:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 22:19:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 22:19:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 22:19:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 22:19:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:19:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:19:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 22:19:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 22:19:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:19:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:19:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 22:19:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 22:19:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 22:19:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 22:19:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-25 22:19:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-25 22:19:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:19:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:19:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:19:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:19:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:19:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:19:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-25 22:19:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-25 22:19:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 22:19:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 22:19:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 22:19:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:19:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:19:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:19:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:19:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:19:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:19:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-11-25 22:19:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-11-25 22:19:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:19:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-11-25 22:19:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-11-25 22:19:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-11-25 22:19:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-11-25 22:19:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:19:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:19:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2022-11-25 22:19:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2022-11-25 22:19:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:19:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:19:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:19:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:19:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-11-25 22:19:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-11-25 22:19:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:19:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:19:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:19:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:19:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-25 22:19:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-25 22:19:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2022-11-25 22:19:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2022-11-25 22:19:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2022-11-25 22:19:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2022-11-25 22:19:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-11-25 22:19:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-11-25 22:19:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-25 22:19:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:19:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2022-11-25 22:19:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2022-11-25 22:19:54,183 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:19:54,186 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:19:54,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:20:05,299 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:20:06,611 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:20:06,612 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:20:06,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:20:06 BoogieIcfgContainer [2022-11-25 22:20:06,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:20:06,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:20:06,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:20:06,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:20:06,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:19:47" (1/3) ... [2022-11-25 22:20:06,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1650346a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:20:06, skipping insertion in model container [2022-11-25 22:20:06,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:51" (2/3) ... [2022-11-25 22:20:06,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1650346a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:20:06, skipping insertion in model container [2022-11-25 22:20:06,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:20:06" (3/3) ... [2022-11-25 22:20:06,630 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-25 22:20:06,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:20:06,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-25 22:20:06,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:20:06,763 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;@6339d4e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:20:06,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-25 22:20:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 1350 states, 774 states have (on average 1.3242894056847545) internal successors, (1025), 851 states have internal predecessors, (1025), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2022-11-25 22:20:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:20:06,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:06,786 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:06,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash -250758093, now seen corresponding path program 1 times [2022-11-25 22:20:06,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:06,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520732853] [2022-11-25 22:20:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:06,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:07,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520732853] [2022-11-25 22:20:07,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520732853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:07,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:07,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658642189] [2022-11-25 22:20:07,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:07,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:07,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:07,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:07,851 INFO L87 Difference]: Start difference. First operand has 1350 states, 774 states have (on average 1.3242894056847545) internal successors, (1025), 851 states have internal predecessors, (1025), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 22:20:11,529 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 22:20:13,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:13,346 INFO L93 Difference]: Finished difference Result 2661 states and 3809 transitions. [2022-11-25 22:20:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:13,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 22:20:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:13,373 INFO L225 Difference]: With dead ends: 2661 [2022-11-25 22:20:13,373 INFO L226 Difference]: Without dead ends: 1332 [2022-11-25 22:20:13,386 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 22:20:13,389 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1813 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:13,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3180 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:20:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-11-25 22:20:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2022-11-25 22:20:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 767 states have (on average 1.272490221642764) internal successors, (976), 836 states have internal predecessors, (976), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1812 transitions. [2022-11-25 22:20:13,636 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1812 transitions. Word has length 51 [2022-11-25 22:20:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:13,638 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1812 transitions. [2022-11-25 22:20:13,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 22:20:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1812 transitions. [2022-11-25 22:20:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 22:20:13,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:13,642 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:13,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:20:13,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:13,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:13,644 INFO L85 PathProgramCache]: Analyzing trace with hash 113188505, now seen corresponding path program 1 times [2022-11-25 22:20:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:13,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494834704] [2022-11-25 22:20:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:13,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:14,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:14,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494834704] [2022-11-25 22:20:14,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494834704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:14,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:14,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:14,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885629109] [2022-11-25 22:20:14,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:14,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:14,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:14,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:14,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:14,188 INFO L87 Difference]: Start difference. First operand 1332 states and 1812 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 22:20:17,391 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 22:20:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:19,095 INFO L93 Difference]: Finished difference Result 1332 states and 1812 transitions. [2022-11-25 22:20:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:19,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 22:20:19,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:19,109 INFO L225 Difference]: With dead ends: 1332 [2022-11-25 22:20:19,109 INFO L226 Difference]: Without dead ends: 1330 [2022-11-25 22:20:19,110 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 22:20:19,112 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 1784 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:19,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 3132 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 22:20:19,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-11-25 22:20:19,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2022-11-25 22:20:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 766 states have (on average 1.2715404699738904) internal successors, (974), 834 states have internal predecessors, (974), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1810 transitions. [2022-11-25 22:20:19,220 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1810 transitions. Word has length 56 [2022-11-25 22:20:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:19,220 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1810 transitions. [2022-11-25 22:20:19,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 22:20:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1810 transitions. [2022-11-25 22:20:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:20:19,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:19,230 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:19,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:20:19,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash 197642285, now seen corresponding path program 1 times [2022-11-25 22:20:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370422686] [2022-11-25 22:20:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:19,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:19,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370422686] [2022-11-25 22:20:19,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370422686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:19,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:19,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:19,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268803586] [2022-11-25 22:20:19,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:19,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:19,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:19,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:19,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:19,775 INFO L87 Difference]: Start difference. First operand 1330 states and 1810 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 22:20:22,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:20:24,121 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 22:20:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:25,856 INFO L93 Difference]: Finished difference Result 1330 states and 1810 transitions. [2022-11-25 22:20:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:25,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 22:20:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:25,869 INFO L225 Difference]: With dead ends: 1330 [2022-11-25 22:20:25,869 INFO L226 Difference]: Without dead ends: 1328 [2022-11-25 22:20:25,870 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 22:20:25,871 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1784 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:25,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3128 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 22:20:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-11-25 22:20:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1328. [2022-11-25 22:20:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 765 states have (on average 1.2705882352941176) internal successors, (972), 832 states have internal predecessors, (972), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1808 transitions. [2022-11-25 22:20:25,966 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1808 transitions. Word has length 61 [2022-11-25 22:20:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:25,966 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1808 transitions. [2022-11-25 22:20:25,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 22:20:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1808 transitions. [2022-11-25 22:20:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:20:25,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:25,968 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:25,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:20:25,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:25,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1986305715, now seen corresponding path program 1 times [2022-11-25 22:20:25,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508490867] [2022-11-25 22:20:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:25,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:26,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508490867] [2022-11-25 22:20:26,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508490867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:26,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:26,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:26,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654417424] [2022-11-25 22:20:26,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:26,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:26,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:26,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:26,337 INFO L87 Difference]: Start difference. First operand 1328 states and 1808 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 22:20:29,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:20:31,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:20:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:33,130 INFO L93 Difference]: Finished difference Result 1328 states and 1808 transitions. [2022-11-25 22:20:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:33,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 22:20:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:33,139 INFO L225 Difference]: With dead ends: 1328 [2022-11-25 22:20:33,139 INFO L226 Difference]: Without dead ends: 1326 [2022-11-25 22:20:33,140 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 22:20:33,141 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 1781 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:33,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 3124 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 22:20:33,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-11-25 22:20:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2022-11-25 22:20:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 764 states have (on average 1.2696335078534031) internal successors, (970), 830 states have internal predecessors, (970), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1806 transitions. [2022-11-25 22:20:33,274 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1806 transitions. Word has length 66 [2022-11-25 22:20:33,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:33,275 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1806 transitions. [2022-11-25 22:20:33,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 22:20:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1806 transitions. [2022-11-25 22:20:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:20:33,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:33,279 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:33,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:20:33,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash -607281178, now seen corresponding path program 1 times [2022-11-25 22:20:33,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254239453] [2022-11-25 22:20:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:33,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:33,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:33,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254239453] [2022-11-25 22:20:33,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254239453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:33,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:33,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707102892] [2022-11-25 22:20:33,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:33,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:33,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:33,740 INFO L87 Difference]: Start difference. First operand 1326 states and 1806 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 22:20:36,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:20:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:38,815 INFO L93 Difference]: Finished difference Result 1326 states and 1806 transitions. [2022-11-25 22:20:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:38,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 22:20:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:38,824 INFO L225 Difference]: With dead ends: 1326 [2022-11-25 22:20:38,824 INFO L226 Difference]: Without dead ends: 1324 [2022-11-25 22:20:38,825 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 22:20:38,826 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 1775 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:38,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 3120 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 22:20:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-25 22:20:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2022-11-25 22:20:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 763 states have (on average 1.2686762778505898) internal successors, (968), 828 states have internal predecessors, (968), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1804 transitions. [2022-11-25 22:20:38,925 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1804 transitions. Word has length 71 [2022-11-25 22:20:38,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:38,926 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1804 transitions. [2022-11-25 22:20:38,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 22:20:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1804 transitions. [2022-11-25 22:20:38,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 22:20:38,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:38,928 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:38,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:20:38,928 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:38,929 INFO L85 PathProgramCache]: Analyzing trace with hash -213589156, now seen corresponding path program 1 times [2022-11-25 22:20:38,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:38,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389013859] [2022-11-25 22:20:38,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:38,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:39,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:39,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389013859] [2022-11-25 22:20:39,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389013859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:39,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:39,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:39,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197286575] [2022-11-25 22:20:39,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:39,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:39,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:39,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:39,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:39,321 INFO L87 Difference]: Start difference. First operand 1324 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 22:20:42,515 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 22:20:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:44,233 INFO L93 Difference]: Finished difference Result 1324 states and 1804 transitions. [2022-11-25 22:20:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:44,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 76 [2022-11-25 22:20:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:44,241 INFO L225 Difference]: With dead ends: 1324 [2022-11-25 22:20:44,241 INFO L226 Difference]: Without dead ends: 1322 [2022-11-25 22:20:44,242 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 22:20:44,243 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1772 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 3116 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:44,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 3116 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:20:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-11-25 22:20:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2022-11-25 22:20:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 762 states have (on average 1.2677165354330708) internal successors, (966), 826 states have internal predecessors, (966), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1802 transitions. [2022-11-25 22:20:44,353 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1802 transitions. Word has length 76 [2022-11-25 22:20:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:44,354 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1802 transitions. [2022-11-25 22:20:44,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 22:20:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1802 transitions. [2022-11-25 22:20:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 22:20:44,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:44,356 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:44,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:20:44,357 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:44,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:44,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1396329951, now seen corresponding path program 1 times [2022-11-25 22:20:44,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:44,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321069442] [2022-11-25 22:20:44,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:44,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:44,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:44,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321069442] [2022-11-25 22:20:44,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321069442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:44,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:44,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224918659] [2022-11-25 22:20:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:44,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:44,698 INFO L87 Difference]: Start difference. First operand 1322 states and 1802 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, (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 22:20:48,035 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 22:20:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:49,488 INFO L93 Difference]: Finished difference Result 1322 states and 1802 transitions. [2022-11-25 22:20:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:49,489 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, (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 81 [2022-11-25 22:20:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:49,496 INFO L225 Difference]: With dead ends: 1322 [2022-11-25 22:20:49,496 INFO L226 Difference]: Without dead ends: 1320 [2022-11-25 22:20:49,498 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 22:20:49,498 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1769 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:49,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 3112 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:20:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-11-25 22:20:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-11-25 22:20:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 761 states have (on average 1.266754270696452) internal successors, (964), 824 states have internal predecessors, (964), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1800 transitions. [2022-11-25 22:20:49,662 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1800 transitions. Word has length 81 [2022-11-25 22:20:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:49,662 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1800 transitions. [2022-11-25 22:20:49,663 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, (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 22:20:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1800 transitions. [2022-11-25 22:20:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 22:20:49,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:49,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:49,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:20:49,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:49,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:49,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1462580187, now seen corresponding path program 1 times [2022-11-25 22:20:49,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:49,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137015792] [2022-11-25 22:20:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:49,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:49,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:49,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137015792] [2022-11-25 22:20:49,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137015792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:49,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:49,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:49,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465724762] [2022-11-25 22:20:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:49,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:49,986 INFO L87 Difference]: Start difference. First operand 1320 states and 1800 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, (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 22:20:53,278 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 22:20:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:54,731 INFO L93 Difference]: Finished difference Result 1320 states and 1800 transitions. [2022-11-25 22:20:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:20:54,732 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, (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 86 [2022-11-25 22:20:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:54,739 INFO L225 Difference]: With dead ends: 1320 [2022-11-25 22:20:54,740 INFO L226 Difference]: Without dead ends: 1318 [2022-11-25 22:20:54,741 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 22:20:54,742 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1770 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:54,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 3104 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:20:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-11-25 22:20:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2022-11-25 22:20:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 760 states have (on average 1.2657894736842106) internal successors, (962), 822 states have internal predecessors, (962), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:20:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1798 transitions. [2022-11-25 22:20:54,863 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1798 transitions. Word has length 86 [2022-11-25 22:20:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:54,863 INFO L495 AbstractCegarLoop]: Abstraction has 1318 states and 1798 transitions. [2022-11-25 22:20:54,864 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, (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 22:20:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1798 transitions. [2022-11-25 22:20:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 22:20:54,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:54,865 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:54,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:20:54,866 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:20:54,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1085115800, now seen corresponding path program 1 times [2022-11-25 22:20:54,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:54,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505519185] [2022-11-25 22:20:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:20:55,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:55,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505519185] [2022-11-25 22:20:55,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505519185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:20:55,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:20:55,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:20:55,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874315450] [2022-11-25 22:20:55,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:20:55,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:20:55,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:20:55,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:20:55,184 INFO L87 Difference]: Start difference. First operand 1318 states and 1798 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 22:20:58,430 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 22:21:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:00,124 INFO L93 Difference]: Finished difference Result 1318 states and 1798 transitions. [2022-11-25 22:21:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:00,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 22:21:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:00,131 INFO L225 Difference]: With dead ends: 1318 [2022-11-25 22:21:00,131 INFO L226 Difference]: Without dead ends: 1316 [2022-11-25 22:21:00,132 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 22:21:00,133 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1762 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:00,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3104 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:21:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-11-25 22:21:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1316. [2022-11-25 22:21:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 759 states have (on average 1.2648221343873518) internal successors, (960), 820 states have internal predecessors, (960), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:21:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1796 transitions. [2022-11-25 22:21:00,259 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1796 transitions. Word has length 88 [2022-11-25 22:21:00,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:00,260 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 1796 transitions. [2022-11-25 22:21:00,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 22:21:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1796 transitions. [2022-11-25 22:21:00,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 22:21:00,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:00,262 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:00,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:21:00,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1496532745, now seen corresponding path program 1 times [2022-11-25 22:21:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:00,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049822599] [2022-11-25 22:21:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:00,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:00,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049822599] [2022-11-25 22:21:00,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049822599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:00,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:00,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810357032] [2022-11-25 22:21:00,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:00,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:00,573 INFO L87 Difference]: Start difference. First operand 1316 states and 1796 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 22:21:03,450 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 22:21:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:04,783 INFO L93 Difference]: Finished difference Result 1316 states and 1796 transitions. [2022-11-25 22:21:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:04,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 22:21:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:04,791 INFO L225 Difference]: With dead ends: 1316 [2022-11-25 22:21:04,791 INFO L226 Difference]: Without dead ends: 1314 [2022-11-25 22:21:04,792 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 22:21:04,793 INFO L413 NwaCegarLoop]: 1550 mSDtfsCounter, 1761 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:04,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 3100 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:21:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-11-25 22:21:04,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2022-11-25 22:21:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 758 states have (on average 1.2638522427440633) internal successors, (958), 818 states have internal predecessors, (958), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:21:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1794 transitions. [2022-11-25 22:21:04,960 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1794 transitions. Word has length 93 [2022-11-25 22:21:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:04,961 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1794 transitions. [2022-11-25 22:21:04,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 22:21:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1794 transitions. [2022-11-25 22:21:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 22:21:04,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:04,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:04,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:21:04,964 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash -851039613, now seen corresponding path program 1 times [2022-11-25 22:21:04,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:04,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548406707] [2022-11-25 22:21:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:05,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:05,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548406707] [2022-11-25 22:21:05,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548406707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:05,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:05,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058047902] [2022-11-25 22:21:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:05,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:05,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:05,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:05,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:05,267 INFO L87 Difference]: Start difference. First operand 1314 states and 1794 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 22:21:08,449 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 22:21:10,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:10,231 INFO L93 Difference]: Finished difference Result 1314 states and 1794 transitions. [2022-11-25 22:21:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 22:21:10,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:10,239 INFO L225 Difference]: With dead ends: 1314 [2022-11-25 22:21:10,239 INFO L226 Difference]: Without dead ends: 1312 [2022-11-25 22:21:10,240 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 22:21:10,241 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 1758 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:10,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 3096 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:21:10,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-11-25 22:21:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2022-11-25 22:21:10,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 757 states have (on average 1.262879788639366) internal successors, (956), 816 states have internal predecessors, (956), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:21:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1792 transitions. [2022-11-25 22:21:10,383 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1792 transitions. Word has length 98 [2022-11-25 22:21:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:10,383 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1792 transitions. [2022-11-25 22:21:10,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 22:21:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1792 transitions. [2022-11-25 22:21:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 22:21:10,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:10,386 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-25 22:21:10,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:21:10,386 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:10,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:10,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1844127085, now seen corresponding path program 1 times [2022-11-25 22:21:10,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:10,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564023010] [2022-11-25 22:21:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:10,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-25 22:21:11,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:11,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564023010] [2022-11-25 22:21:11,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564023010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:11,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:11,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:21:11,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40758764] [2022-11-25 22:21:11,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:11,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:21:11,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:11,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:21:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:21:11,508 INFO L87 Difference]: Start difference. First operand 1312 states and 1792 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:21:16,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:21:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:21,603 INFO L93 Difference]: Finished difference Result 1312 states and 1792 transitions. [2022-11-25 22:21:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:21:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2022-11-25 22:21:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:21,610 INFO L225 Difference]: With dead ends: 1312 [2022-11-25 22:21:21,611 INFO L226 Difference]: Without dead ends: 1310 [2022-11-25 22:21:21,612 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 22:21:21,612 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1745 mSDsluCounter, 3808 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 5355 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:21,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 5355 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1800 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-25 22:21:21,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-11-25 22:21:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2022-11-25 22:21:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 756 states have (on average 1.2619047619047619) internal successors, (954), 814 states have internal predecessors, (954), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:21:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1790 transitions. [2022-11-25 22:21:21,806 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1790 transitions. Word has length 131 [2022-11-25 22:21:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:21,807 INFO L495 AbstractCegarLoop]: Abstraction has 1310 states and 1790 transitions. [2022-11-25 22:21:21,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:21:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1790 transitions. [2022-11-25 22:21:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 22:21:21,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:21,810 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:21,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:21:21,810 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:21,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1275648013, now seen corresponding path program 1 times [2022-11-25 22:21:21,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:21,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364997952] [2022-11-25 22:21:21,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:21,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:22,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364997952] [2022-11-25 22:21:22,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364997952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:22,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:22,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:22,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679438285] [2022-11-25 22:21:22,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:22,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:22,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:22,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:22,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:22,150 INFO L87 Difference]: Start difference. First operand 1310 states and 1790 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 22:21:25,564 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 22:21:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:27,610 INFO L93 Difference]: Finished difference Result 1310 states and 1790 transitions. [2022-11-25 22:21:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:27,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 22:21:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:27,619 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 22:21:27,619 INFO L226 Difference]: Without dead ends: 1308 [2022-11-25 22:21:27,620 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 22:21:27,621 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 1753 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:27,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 3088 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:21:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-11-25 22:21:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2022-11-25 22:21:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 755 states have (on average 1.2609271523178809) internal successors, (952), 812 states have internal predecessors, (952), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-25 22:21:27,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1788 transitions. [2022-11-25 22:21:27,828 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1788 transitions. Word has length 103 [2022-11-25 22:21:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:27,829 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 1788 transitions. [2022-11-25 22:21:27,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 22:21:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1788 transitions. [2022-11-25 22:21:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 22:21:27,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:27,832 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:21:27,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:21:27,832 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:27,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:27,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1575201619, now seen corresponding path program 1 times [2022-11-25 22:21:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:27,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170215873] [2022-11-25 22:21:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:27,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-25 22:21:28,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:28,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170215873] [2022-11-25 22:21:28,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170215873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:28,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:28,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:21:28,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279319550] [2022-11-25 22:21:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:28,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:21:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:21:28,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:21:28,623 INFO L87 Difference]: Start difference. First operand 1308 states and 1788 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 22:21:32,156 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 22:21:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:36,015 INFO L93 Difference]: Finished difference Result 2504 states and 3451 transitions. [2022-11-25 22:21:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:21:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2022-11-25 22:21:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:36,030 INFO L225 Difference]: With dead ends: 2504 [2022-11-25 22:21:36,030 INFO L226 Difference]: Without dead ends: 2502 [2022-11-25 22:21:36,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 22:21:36,032 INFO L413 NwaCegarLoop]: 2288 mSDtfsCounter, 1763 mSDsluCounter, 5989 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 8277 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:36,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 8277 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-25 22:21:36,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-11-25 22:21:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2326. [2022-11-25 22:21:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1358 states have (on average 1.271723122238586) internal successors, (1727), 1449 states have internal predecessors, (1727), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:21:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3264 transitions. [2022-11-25 22:21:36,348 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3264 transitions. Word has length 128 [2022-11-25 22:21:36,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:36,349 INFO L495 AbstractCegarLoop]: Abstraction has 2326 states and 3264 transitions. [2022-11-25 22:21:36,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 22:21:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3264 transitions. [2022-11-25 22:21:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-25 22:21:36,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:36,353 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:21:36,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:21:36,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:36,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:36,354 INFO L85 PathProgramCache]: Analyzing trace with hash -965710418, now seen corresponding path program 1 times [2022-11-25 22:21:36,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:36,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195329888] [2022-11-25 22:21:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:36,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-25 22:21:36,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:36,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195329888] [2022-11-25 22:21:36,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195329888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:36,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:36,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:21:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393716778] [2022-11-25 22:21:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:21:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:21:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:21:36,632 INFO L87 Difference]: Start difference. First operand 2326 states and 3264 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:21:39,280 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 22:21:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:40,526 INFO L93 Difference]: Finished difference Result 4613 states and 6628 transitions. [2022-11-25 22:21:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:21:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2022-11-25 22:21:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:40,549 INFO L225 Difference]: With dead ends: 4613 [2022-11-25 22:21:40,550 INFO L226 Difference]: Without dead ends: 2320 [2022-11-25 22:21:40,564 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 22:21:40,565 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1745 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:40,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 1539 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 22:21:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-11-25 22:21:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2022-11-25 22:21:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 1353 states have (on average 1.269770879526977) internal successors, (1718), 1443 states have internal predecessors, (1718), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:21:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3255 transitions. [2022-11-25 22:21:40,967 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3255 transitions. Word has length 137 [2022-11-25 22:21:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:40,969 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3255 transitions. [2022-11-25 22:21:40,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:21:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3255 transitions. [2022-11-25 22:21:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 22:21:40,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:40,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:40,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:21:40,973 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:40,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash 228667550, now seen corresponding path program 1 times [2022-11-25 22:21:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:40,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103773520] [2022-11-25 22:21:40,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:40,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:41,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:41,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103773520] [2022-11-25 22:21:41,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103773520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:41,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:41,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583957660] [2022-11-25 22:21:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:41,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:41,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:41,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:41,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:41,290 INFO L87 Difference]: Start difference. First operand 2320 states and 3255 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 22:21:45,094 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 22:21:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:46,735 INFO L93 Difference]: Finished difference Result 2320 states and 3255 transitions. [2022-11-25 22:21:46,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 22:21:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:46,749 INFO L225 Difference]: With dead ends: 2320 [2022-11-25 22:21:46,749 INFO L226 Difference]: Without dead ends: 2318 [2022-11-25 22:21:46,751 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 22:21:46,752 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 1745 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:46,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 3074 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 22:21:46,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-25 22:21:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2022-11-25 22:21:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1352 states have (on average 1.2692307692307692) internal successors, (1716), 1441 states have internal predecessors, (1716), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:21:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3253 transitions. [2022-11-25 22:21:47,249 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3253 transitions. Word has length 108 [2022-11-25 22:21:47,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:47,250 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3253 transitions. [2022-11-25 22:21:47,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 22:21:47,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3253 transitions. [2022-11-25 22:21:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 22:21:47,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:47,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:47,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:21:47,253 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1710131555, now seen corresponding path program 1 times [2022-11-25 22:21:47,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:47,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260375208] [2022-11-25 22:21:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:47,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:47,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:47,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260375208] [2022-11-25 22:21:47,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260375208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:47,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:47,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:47,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284583814] [2022-11-25 22:21:47,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:47,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:47,578 INFO L87 Difference]: Start difference. First operand 2318 states and 3253 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 22:21:50,518 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 22:21:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:52,512 INFO L93 Difference]: Finished difference Result 2318 states and 3253 transitions. [2022-11-25 22:21:52,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 22:21:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:52,524 INFO L225 Difference]: With dead ends: 2318 [2022-11-25 22:21:52,524 INFO L226 Difference]: Without dead ends: 2316 [2022-11-25 22:21:52,525 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 22:21:52,526 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 1742 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:52,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3070 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 22:21:52,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-11-25 22:21:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2316. [2022-11-25 22:21:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1351 states have (on average 1.2686898593634346) internal successors, (1714), 1439 states have internal predecessors, (1714), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:21:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3251 transitions. [2022-11-25 22:21:52,869 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3251 transitions. Word has length 113 [2022-11-25 22:21:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:52,870 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 3251 transitions. [2022-11-25 22:21:52,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 22:21:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3251 transitions. [2022-11-25 22:21:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 22:21:52,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:52,873 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:21:52,873 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:52,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:52,874 INFO L85 PathProgramCache]: Analyzing trace with hash 935997290, now seen corresponding path program 1 times [2022-11-25 22:21:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714157095] [2022-11-25 22:21:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:52,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:53,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:53,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714157095] [2022-11-25 22:21:53,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714157095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:53,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:53,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:53,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123063736] [2022-11-25 22:21:53,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:53,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:53,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:53,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:53,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:53,219 INFO L87 Difference]: Start difference. First operand 2316 states and 3251 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 22:21:54,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:21:57,030 WARN L539 Checker$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 22:21:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:58,849 INFO L93 Difference]: Finished difference Result 2316 states and 3251 transitions. [2022-11-25 22:21:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:21:58,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 22:21:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:58,879 INFO L225 Difference]: With dead ends: 2316 [2022-11-25 22:21:58,879 INFO L226 Difference]: Without dead ends: 2314 [2022-11-25 22:21:58,880 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 22:21:58,881 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1739 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:58,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3066 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:21:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-11-25 22:21:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2022-11-25 22:21:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1350 states have (on average 1.2681481481481482) internal successors, (1712), 1437 states have internal predecessors, (1712), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:21:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3249 transitions. [2022-11-25 22:21:59,261 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3249 transitions. Word has length 118 [2022-11-25 22:21:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:59,261 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 3249 transitions. [2022-11-25 22:21:59,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 22:21:59,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3249 transitions. [2022-11-25 22:21:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 22:21:59,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:59,265 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:59,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:21:59,265 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:21:59,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash 96115957, now seen corresponding path program 1 times [2022-11-25 22:21:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:59,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069696285] [2022-11-25 22:21:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:21:59,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:21:59,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069696285] [2022-11-25 22:21:59,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069696285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:59,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:59,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919926059] [2022-11-25 22:21:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:59,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:59,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:59,993 INFO L87 Difference]: Start difference. First operand 2314 states and 3249 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 22:22:03,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:22:05,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:22:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:07,178 INFO L93 Difference]: Finished difference Result 2314 states and 3249 transitions. [2022-11-25 22:22:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:22:07,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 22:22:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:07,189 INFO L225 Difference]: With dead ends: 2314 [2022-11-25 22:22:07,189 INFO L226 Difference]: Without dead ends: 2312 [2022-11-25 22:22:07,191 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 22:22:07,192 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1739 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:07,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 3062 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-25 22:22:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-11-25 22:22:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2022-11-25 22:22:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1349 states have (on average 1.267605633802817) internal successors, (1710), 1435 states have internal predecessors, (1710), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:22:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3247 transitions. [2022-11-25 22:22:07,540 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3247 transitions. Word has length 123 [2022-11-25 22:22:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:07,541 INFO L495 AbstractCegarLoop]: Abstraction has 2312 states and 3247 transitions. [2022-11-25 22:22:07,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 22:22:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3247 transitions. [2022-11-25 22:22:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 22:22:07,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:07,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:07,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 22:22:07,545 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:07,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1988330977, now seen corresponding path program 1 times [2022-11-25 22:22:07,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:07,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500068855] [2022-11-25 22:22:07,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:07,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:22:07,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:07,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500068855] [2022-11-25 22:22:07,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500068855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:07,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:07,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:22:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732846102] [2022-11-25 22:22:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:07,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:22:07,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:22:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:22:07,894 INFO L87 Difference]: Start difference. First operand 2312 states and 3247 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 22:22:11,292 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 22:22:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:12,960 INFO L93 Difference]: Finished difference Result 2312 states and 3247 transitions. [2022-11-25 22:22:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:22:12,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 22:22:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:12,970 INFO L225 Difference]: With dead ends: 2312 [2022-11-25 22:22:12,970 INFO L226 Difference]: Without dead ends: 2310 [2022-11-25 22:22:12,971 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 22:22:12,972 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1733 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:12,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 3058 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:22:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-11-25 22:22:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2022-11-25 22:22:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1348 states have (on average 1.2670623145400592) internal successors, (1708), 1433 states have internal predecessors, (1708), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:22:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3245 transitions. [2022-11-25 22:22:13,293 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3245 transitions. Word has length 128 [2022-11-25 22:22:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:13,294 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3245 transitions. [2022-11-25 22:22:13,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 22:22:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3245 transitions. [2022-11-25 22:22:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:22:13,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:13,298 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:13,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 22:22:13,299 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:13,299 INFO L85 PathProgramCache]: Analyzing trace with hash -795541764, now seen corresponding path program 1 times [2022-11-25 22:22:13,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:13,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311071613] [2022-11-25 22:22:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:13,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:22:13,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:13,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311071613] [2022-11-25 22:22:13,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311071613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:13,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:13,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:22:13,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349048923] [2022-11-25 22:22:13,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:13,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:22:13,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:22:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:22:13,611 INFO L87 Difference]: Start difference. First operand 2310 states and 3245 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 22:22:17,348 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 22:22:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:19,468 INFO L93 Difference]: Finished difference Result 2310 states and 3245 transitions. [2022-11-25 22:22:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:22:19,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 22:22:19,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:19,477 INFO L225 Difference]: With dead ends: 2310 [2022-11-25 22:22:19,478 INFO L226 Difference]: Without dead ends: 2308 [2022-11-25 22:22:19,479 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 22:22:19,480 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1730 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:19,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 3054 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:22:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2022-11-25 22:22:19,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2022-11-25 22:22:19,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2308 states, 1347 states have (on average 1.2665181885671863) internal successors, (1706), 1431 states have internal predecessors, (1706), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:22:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3243 transitions. [2022-11-25 22:22:19,847 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3243 transitions. Word has length 133 [2022-11-25 22:22:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:19,848 INFO L495 AbstractCegarLoop]: Abstraction has 2308 states and 3243 transitions. [2022-11-25 22:22:19,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 22:22:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3243 transitions. [2022-11-25 22:22:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-25 22:22:19,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:19,852 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-25 22:22:19,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 22:22:19,852 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:19,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:19,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2022834555, now seen corresponding path program 1 times [2022-11-25 22:22:19,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:19,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560298077] [2022-11-25 22:22:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:19,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-25 22:22:20,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:20,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560298077] [2022-11-25 22:22:20,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560298077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:20,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:20,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:22:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186404997] [2022-11-25 22:22:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:20,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:22:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:22:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:22:20,094 INFO L87 Difference]: Start difference. First operand 2308 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:22:22,996 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 22:22:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:24,407 INFO L93 Difference]: Finished difference Result 4489 states and 6287 transitions. [2022-11-25 22:22:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:22:24,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-11-25 22:22:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:24,421 INFO L225 Difference]: With dead ends: 4489 [2022-11-25 22:22:24,421 INFO L226 Difference]: Without dead ends: 2302 [2022-11-25 22:22:24,431 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 22:22:24,431 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 1750 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:24,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 1523 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:22:24,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-11-25 22:22:24,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-11-25 22:22:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1342 states have (on average 1.2645305514157974) internal successors, (1697), 1425 states have internal predecessors, (1697), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-25 22:22:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3234 transitions. [2022-11-25 22:22:24,771 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3234 transitions. Word has length 162 [2022-11-25 22:22:24,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:24,772 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 3234 transitions. [2022-11-25 22:22:24,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:22:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3234 transitions. [2022-11-25 22:22:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 22:22:24,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:24,776 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:22:24,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 22:22:24,777 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:24,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 847234187, now seen corresponding path program 1 times [2022-11-25 22:22:24,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:24,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83633647] [2022-11-25 22:22:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:24,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 22:22:25,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:25,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83633647] [2022-11-25 22:22:25,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83633647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:25,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:25,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:22:25,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114285825] [2022-11-25 22:22:25,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:25,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:22:25,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:25,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:22:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:22:25,701 INFO L87 Difference]: Start difference. First operand 2302 states and 3234 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:22:31,274 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 22:22:33,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:22:36,976 WARN L539 Checker$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 22:22:38,983 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 22:22:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:43,159 INFO L93 Difference]: Finished difference Result 4514 states and 6411 transitions. [2022-11-25 22:22:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:22:43,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 167 [2022-11-25 22:22:43,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:43,171 INFO L225 Difference]: With dead ends: 4514 [2022-11-25 22:22:43,171 INFO L226 Difference]: Without dead ends: 2321 [2022-11-25 22:22:43,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:22:43,181 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 5 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:43,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5856 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1254 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time] [2022-11-25 22:22:43,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2022-11-25 22:22:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2319. [2022-11-25 22:22:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 1354 states have (on average 1.2644017725258494) internal successors, (1712), 1441 states have internal predecessors, (1712), 748 states have call successors, (748), 205 states have call predecessors, (748), 205 states have return successors, (799), 715 states have call predecessors, (799), 746 states have call successors, (799) [2022-11-25 22:22:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3259 transitions. [2022-11-25 22:22:43,554 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3259 transitions. Word has length 167 [2022-11-25 22:22:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:43,555 INFO L495 AbstractCegarLoop]: Abstraction has 2319 states and 3259 transitions. [2022-11-25 22:22:43,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:22:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3259 transitions. [2022-11-25 22:22:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 22:22:43,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:43,559 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:43,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 22:22:43,560 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:43,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash 668130409, now seen corresponding path program 1 times [2022-11-25 22:22:43,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:43,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327437585] [2022-11-25 22:22:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:43,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:22:43,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:43,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327437585] [2022-11-25 22:22:43,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327437585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:43,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:43,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:22:43,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186829622] [2022-11-25 22:22:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:43,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:22:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:22:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:22:43,899 INFO L87 Difference]: Start difference. First operand 2319 states and 3259 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:22:47,306 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 22:22:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:51,235 INFO L93 Difference]: Finished difference Result 4567 states and 6483 transitions. [2022-11-25 22:22:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:22:51,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-11-25 22:22:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:51,254 INFO L225 Difference]: With dead ends: 4567 [2022-11-25 22:22:51,255 INFO L226 Difference]: Without dead ends: 4565 [2022-11-25 22:22:51,258 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 22:22:51,258 INFO L413 NwaCegarLoop]: 2074 mSDtfsCounter, 1697 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 5612 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:51,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 5612 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 823 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:22:51,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2022-11-25 22:22:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4527. [2022-11-25 22:22:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4527 states, 2646 states have (on average 1.2653061224489797) internal successors, (3348), 2807 states have internal predecessors, (3348), 1462 states have call successors, (1462), 406 states have call predecessors, (1462), 407 states have return successors, (1640), 1395 states have call predecessors, (1640), 1460 states have call successors, (1640) [2022-11-25 22:22:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 6450 transitions. [2022-11-25 22:22:52,215 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 6450 transitions. Word has length 138 [2022-11-25 22:22:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:52,216 INFO L495 AbstractCegarLoop]: Abstraction has 4527 states and 6450 transitions. [2022-11-25 22:22:52,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:22:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 6450 transitions. [2022-11-25 22:22:52,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 22:22:52,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:52,221 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:22:52,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 22:22:52,221 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:52,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:52,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1087078572, now seen corresponding path program 1 times [2022-11-25 22:22:52,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:52,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066122565] [2022-11-25 22:22:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:52,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-25 22:22:52,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:22:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066122565] [2022-11-25 22:22:52,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066122565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:22:52,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227769190] [2022-11-25 22:22:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:52,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:22:52,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:22:52,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:22:52,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:22:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:53,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:22:53,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:22:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-25 22:22:54,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:22:54,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227769190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:54,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:22:54,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-25 22:22:54,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747642000] [2022-11-25 22:22:54,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:54,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:22:54,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:22:54,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:22:54,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:22:54,140 INFO L87 Difference]: Start difference. First operand 4527 states and 6450 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 22:22:56,692 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 22:22:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:58,486 INFO L93 Difference]: Finished difference Result 8883 states and 12612 transitions. [2022-11-25 22:22:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:22:58,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 167 [2022-11-25 22:22:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:58,507 INFO L225 Difference]: With dead ends: 8883 [2022-11-25 22:22:58,507 INFO L226 Difference]: Without dead ends: 4539 [2022-11-25 22:22:58,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:22:58,524 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 1667 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:58,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 1580 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 22:22:58,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-11-25 22:22:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4537. [2022-11-25 22:22:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 2647 states have (on average 1.2621836040800907) internal successors, (3341), 2808 states have internal predecessors, (3341), 1466 states have call successors, (1466), 412 states have call predecessors, (1466), 413 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-11-25 22:22:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6451 transitions. [2022-11-25 22:22:59,439 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6451 transitions. Word has length 167 [2022-11-25 22:22:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:59,440 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 6451 transitions. [2022-11-25 22:22:59,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 22:22:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6451 transitions. [2022-11-25 22:22:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 22:22:59,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:59,444 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:59,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:22:59,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 22:22:59,656 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:22:59,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:59,656 INFO L85 PathProgramCache]: Analyzing trace with hash -651518112, now seen corresponding path program 1 times [2022-11-25 22:22:59,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:22:59,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15528536] [2022-11-25 22:22:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:22:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:23:00,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:00,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15528536] [2022-11-25 22:23:00,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15528536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:00,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:00,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:23:00,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926673746] [2022-11-25 22:23:00,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:00,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:23:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:23:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:00,026 INFO L87 Difference]: Start difference. First operand 4537 states and 6451 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:23:03,318 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 22:23:05,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:05,904 INFO L93 Difference]: Finished difference Result 4537 states and 6451 transitions. [2022-11-25 22:23:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:23:05,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-11-25 22:23:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:05,922 INFO L225 Difference]: With dead ends: 4537 [2022-11-25 22:23:05,922 INFO L226 Difference]: Without dead ends: 4535 [2022-11-25 22:23:05,925 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 22:23:05,926 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 1716 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:05,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 3030 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-25 22:23:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2022-11-25 22:23:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 4535. [2022-11-25 22:23:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 2646 states have (on average 1.2619047619047619) internal successors, (3339), 2806 states have internal predecessors, (3339), 1466 states have call successors, (1466), 412 states have call predecessors, (1466), 413 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-11-25 22:23:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6449 transitions. [2022-11-25 22:23:06,930 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6449 transitions. Word has length 143 [2022-11-25 22:23:06,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:06,930 INFO L495 AbstractCegarLoop]: Abstraction has 4535 states and 6449 transitions. [2022-11-25 22:23:06,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:23:06,931 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6449 transitions. [2022-11-25 22:23:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 22:23:06,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:06,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 22:23:06,936 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash -110108656, now seen corresponding path program 1 times [2022-11-25 22:23:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:06,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916273964] [2022-11-25 22:23:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:23:07,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:07,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916273964] [2022-11-25 22:23:07,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916273964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:07,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:07,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:23:07,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872993998] [2022-11-25 22:23:07,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:07,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:23:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:07,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:23:07,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:07,295 INFO L87 Difference]: Start difference. First operand 4535 states and 6449 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:23:09,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:23:11,849 WARN L539 Checker$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 22:23:14,944 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 22:23:18,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:18,377 INFO L93 Difference]: Finished difference Result 8919 states and 12893 transitions. [2022-11-25 22:23:18,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:23:18,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-11-25 22:23:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:18,409 INFO L225 Difference]: With dead ends: 8919 [2022-11-25 22:23:18,409 INFO L226 Difference]: Without dead ends: 8771 [2022-11-25 22:23:18,415 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 22:23:18,416 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1673 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:18,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 5248 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 725 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2022-11-25 22:23:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8771 states. [2022-11-25 22:23:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8771 to 8745. [2022-11-25 22:23:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8745 states, 5122 states have (on average 1.2645450995704803) internal successors, (6477), 5420 states have internal predecessors, (6477), 2816 states have call successors, (2816), 795 states have call predecessors, (2816), 797 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-25 22:23:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8745 states to 8745 states and 12688 transitions. [2022-11-25 22:23:20,121 INFO L78 Accepts]: Start accepts. Automaton has 8745 states and 12688 transitions. Word has length 148 [2022-11-25 22:23:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:20,122 INFO L495 AbstractCegarLoop]: Abstraction has 8745 states and 12688 transitions. [2022-11-25 22:23:20,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:23:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8745 states and 12688 transitions. [2022-11-25 22:23:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-25 22:23:20,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:20,126 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:20,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 22:23:20,126 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:20,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:20,127 INFO L85 PathProgramCache]: Analyzing trace with hash 655040851, now seen corresponding path program 1 times [2022-11-25 22:23:20,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:20,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569454564] [2022-11-25 22:23:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-25 22:23:20,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:20,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569454564] [2022-11-25 22:23:20,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569454564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:20,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:20,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:20,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572366155] [2022-11-25 22:23:20,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:20,369 INFO L87 Difference]: Start difference. First operand 8745 states and 12688 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 22:23:23,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:23:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:27,316 INFO L93 Difference]: Finished difference Result 18807 states and 27584 transitions. [2022-11-25 22:23:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:27,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2022-11-25 22:23:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:27,362 INFO L225 Difference]: With dead ends: 18807 [2022-11-25 22:23:27,363 INFO L226 Difference]: Without dead ends: 10244 [2022-11-25 22:23:27,401 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 22:23:27,401 INFO L413 NwaCegarLoop]: 1787 mSDtfsCounter, 142 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:27,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 3352 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 22:23:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-11-25 22:23:29,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 8746. [2022-11-25 22:23:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8746 states, 5123 states have (on average 1.2644934608627758) internal successors, (6478), 5421 states have internal predecessors, (6478), 2816 states have call successors, (2816), 795 states have call predecessors, (2816), 797 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-25 22:23:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8746 states to 8746 states and 12689 transitions. [2022-11-25 22:23:29,066 INFO L78 Accepts]: Start accepts. Automaton has 8746 states and 12689 transitions. Word has length 183 [2022-11-25 22:23:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:29,067 INFO L495 AbstractCegarLoop]: Abstraction has 8746 states and 12689 transitions. [2022-11-25 22:23:29,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 22:23:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8746 states and 12689 transitions. [2022-11-25 22:23:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 22:23:29,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:29,070 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:29,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 22:23:29,070 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:29,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2025735955, now seen corresponding path program 1 times [2022-11-25 22:23:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:29,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911643356] [2022-11-25 22:23:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 22:23:30,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:30,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911643356] [2022-11-25 22:23:30,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911643356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:30,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:30,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:23:30,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795802384] [2022-11-25 22:23:30,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:30,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:23:30,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:30,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:23:30,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:23:30,025 INFO L87 Difference]: Start difference. First operand 8746 states and 12689 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:33,288 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 22:23:36,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:36,885 INFO L93 Difference]: Finished difference Result 8804 states and 12722 transitions. [2022-11-25 22:23:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:23:36,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 186 [2022-11-25 22:23:36,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:36,919 INFO L225 Difference]: With dead ends: 8804 [2022-11-25 22:23:36,919 INFO L226 Difference]: Without dead ends: 8802 [2022-11-25 22:23:36,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 22:23:36,925 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1659 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:36,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 4571 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 743 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 22:23:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-11-25 22:23:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8802. [2022-11-25 22:23:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8802 states, 5155 states have (on average 1.2612997090203686) internal successors, (6502), 5452 states have internal predecessors, (6502), 2816 states have call successors, (2816), 820 states have call predecessors, (2816), 822 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-25 22:23:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 12713 transitions. [2022-11-25 22:23:38,571 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 12713 transitions. Word has length 186 [2022-11-25 22:23:38,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:38,572 INFO L495 AbstractCegarLoop]: Abstraction has 8802 states and 12713 transitions. [2022-11-25 22:23:38,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 12713 transitions. [2022-11-25 22:23:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 22:23:38,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:38,576 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:38,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 22:23:38,577 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:38,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2024213340, now seen corresponding path program 1 times [2022-11-25 22:23:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:38,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117487243] [2022-11-25 22:23:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 22:23:38,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:38,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117487243] [2022-11-25 22:23:38,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117487243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:38,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:38,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:23:38,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864907012] [2022-11-25 22:23:38,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:38,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:23:38,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:38,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:23:38,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:38,855 INFO L87 Difference]: Start difference. First operand 8802 states and 12713 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:42,325 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 22:23:46,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:46,319 INFO L93 Difference]: Finished difference Result 18158 states and 27091 transitions. [2022-11-25 22:23:46,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:23:46,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 186 [2022-11-25 22:23:46,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:46,350 INFO L225 Difference]: With dead ends: 18158 [2022-11-25 22:23:46,350 INFO L226 Difference]: Without dead ends: 9542 [2022-11-25 22:23:46,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:46,465 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 95 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:46,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4602 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 22:23:46,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9542 states. [2022-11-25 22:23:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9542 to 8818. [2022-11-25 22:23:48,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8818 states, 5171 states have (on average 1.2604912009282536) internal successors, (6518), 5468 states have internal predecessors, (6518), 2816 states have call successors, (2816), 820 states have call predecessors, (2816), 822 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-25 22:23:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8818 states to 8818 states and 12729 transitions. [2022-11-25 22:23:48,134 INFO L78 Accepts]: Start accepts. Automaton has 8818 states and 12729 transitions. Word has length 186 [2022-11-25 22:23:48,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:48,134 INFO L495 AbstractCegarLoop]: Abstraction has 8818 states and 12729 transitions. [2022-11-25 22:23:48,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:48,135 INFO L276 IsEmpty]: Start isEmpty. Operand 8818 states and 12729 transitions. [2022-11-25 22:23:48,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-25 22:23:48,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:48,139 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:48,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 22:23:48,139 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:48,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1057124256, now seen corresponding path program 1 times [2022-11-25 22:23:48,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:48,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456692712] [2022-11-25 22:23:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:48,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 22:23:48,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:48,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456692712] [2022-11-25 22:23:48,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456692712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:48,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:48,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:23:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226849522] [2022-11-25 22:23:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:48,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:23:48,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:48,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:23:48,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:23:48,608 INFO L87 Difference]: Start difference. First operand 8818 states and 12729 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:52,734 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 22:23:57,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:57,637 INFO L93 Difference]: Finished difference Result 9232 states and 13194 transitions. [2022-11-25 22:23:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:23:57,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 177 [2022-11-25 22:23:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:57,661 INFO L225 Difference]: With dead ends: 9232 [2022-11-25 22:23:57,661 INFO L226 Difference]: Without dead ends: 9230 [2022-11-25 22:23:57,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:23:57,666 INFO L413 NwaCegarLoop]: 2375 mSDtfsCounter, 1597 mSDsluCounter, 6284 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 8659 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:57,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 8659 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1285 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-25 22:23:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9230 states. [2022-11-25 22:23:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9230 to 8838. [2022-11-25 22:23:59,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8838 states, 5183 states have (on average 1.2598880956974725) internal successors, (6530), 5484 states have internal predecessors, (6530), 2820 states have call successors, (2820), 824 states have call predecessors, (2820), 826 states have return successors, (3399), 2687 states have call predecessors, (3399), 2816 states have call successors, (3399) [2022-11-25 22:23:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8838 states to 8838 states and 12749 transitions. [2022-11-25 22:23:59,249 INFO L78 Accepts]: Start accepts. Automaton has 8838 states and 12749 transitions. Word has length 177 [2022-11-25 22:23:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:59,249 INFO L495 AbstractCegarLoop]: Abstraction has 8838 states and 12749 transitions. [2022-11-25 22:23:59,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:23:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8838 states and 12749 transitions. [2022-11-25 22:23:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-25 22:23:59,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:59,255 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:59,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 22:23:59,255 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:23:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1533664904, now seen corresponding path program 1 times [2022-11-25 22:23:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:59,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760590668] [2022-11-25 22:23:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-25 22:24:00,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:00,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760590668] [2022-11-25 22:24:00,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760590668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:00,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285778163] [2022-11-25 22:24:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:00,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:00,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:00,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:00,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:24:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:02,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 2383 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:24:02,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:02,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-25 22:24:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-25 22:24:02,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:02,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285778163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:02,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:24:02,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-25 22:24:02,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061204621] [2022-11-25 22:24:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:02,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:24:02,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:24:02,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:24:02,219 INFO L87 Difference]: Start difference. First operand 8838 states and 12749 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-25 22:24:06,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:08,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:10,334 WARN L539 Checker$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 22:24:12,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:13,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:15,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:18,087 WARN L539 Checker$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 22:24:20,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:25,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:25,445 INFO L93 Difference]: Finished difference Result 17742 states and 26383 transitions. [2022-11-25 22:24:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:24:25,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 227 [2022-11-25 22:24:25,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:25,485 INFO L225 Difference]: With dead ends: 17742 [2022-11-25 22:24:25,485 INFO L226 Difference]: Without dead ends: 9090 [2022-11-25 22:24:25,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:24:25,528 INFO L413 NwaCegarLoop]: 1528 mSDtfsCounter, 28 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5869 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1253 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2022-11-25 22:24:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9090 states. [2022-11-25 22:24:27,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 8902. [2022-11-25 22:24:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 5239 states have (on average 1.2616911624355793) internal successors, (6610), 5540 states have internal predecessors, (6610), 2828 states have call successors, (2828), 824 states have call predecessors, (2828), 826 states have return successors, (3407), 2695 states have call predecessors, (3407), 2824 states have call successors, (3407) [2022-11-25 22:24:27,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 12845 transitions. [2022-11-25 22:24:27,247 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 12845 transitions. Word has length 227 [2022-11-25 22:24:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:27,248 INFO L495 AbstractCegarLoop]: Abstraction has 8902 states and 12845 transitions. [2022-11-25 22:24:27,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-25 22:24:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 12845 transitions. [2022-11-25 22:24:27,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-25 22:24:27,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:27,253 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:27,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:27,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-25 22:24:27,466 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:24:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash -626918756, now seen corresponding path program 1 times [2022-11-25 22:24:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:27,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787556184] [2022-11-25 22:24:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:27,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-25 22:24:28,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:28,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787556184] [2022-11-25 22:24:28,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787556184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:28,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646588488] [2022-11-25 22:24:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:28,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:28,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:28,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:28,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:24:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:29,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 2390 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:24:29,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:29,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-25 22:24:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-25 22:24:29,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:29,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646588488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:29,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:24:29,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-25 22:24:29,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697359072] [2022-11-25 22:24:29,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:29,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:24:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:29,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:24:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:24:29,973 INFO L87 Difference]: Start difference. First operand 8902 states and 12845 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-25 22:24:34,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:38,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:41,379 WARN L539 Checker$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 22:24:43,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:49,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:49,108 INFO L93 Difference]: Finished difference Result 17822 states and 26495 transitions. [2022-11-25 22:24:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:24:49,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 228 [2022-11-25 22:24:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:49,143 INFO L225 Difference]: With dead ends: 17822 [2022-11-25 22:24:49,143 INFO L226 Difference]: Without dead ends: 9106 [2022-11-25 22:24:49,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:24:49,178 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 32 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:49,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5881 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1261 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2022-11-25 22:24:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2022-11-25 22:24:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 8902. [2022-11-25 22:24:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 5239 states have (on average 1.2601641534644017) internal successors, (6602), 5540 states have internal predecessors, (6602), 2828 states have call successors, (2828), 824 states have call predecessors, (2828), 826 states have return successors, (3407), 2695 states have call predecessors, (3407), 2824 states have call successors, (3407) [2022-11-25 22:24:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 12837 transitions. [2022-11-25 22:24:50,672 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 12837 transitions. Word has length 228 [2022-11-25 22:24:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:50,672 INFO L495 AbstractCegarLoop]: Abstraction has 8902 states and 12837 transitions. [2022-11-25 22:24:50,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-25 22:24:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 12837 transitions. [2022-11-25 22:24:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-25 22:24:50,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:50,678 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:50,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:50,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:50,891 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:24:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash 484276313, now seen corresponding path program 1 times [2022-11-25 22:24:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:50,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221368432] [2022-11-25 22:24:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-25 22:24:51,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221368432] [2022-11-25 22:24:51,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221368432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592582118] [2022-11-25 22:24:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:51,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:51,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:24:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:53,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 2392 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:24:53,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-25 22:24:53,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:53,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592582118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:53,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:24:53,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-25 22:24:53,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605092349] [2022-11-25 22:24:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:53,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:24:53,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:53,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:24:53,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:24:53,390 INFO L87 Difference]: Start difference. First operand 8902 states and 12837 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 22:24:57,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:24:59,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:25:01,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:25:03,841 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 22:25:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:08,310 INFO L93 Difference]: Finished difference Result 15837 states and 22550 transitions. [2022-11-25 22:25:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:25:08,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 229 [2022-11-25 22:25:08,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:08,335 INFO L225 Difference]: With dead ends: 15837 [2022-11-25 22:25:08,335 INFO L226 Difference]: Without dead ends: 10294 [2022-11-25 22:25:08,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:25:08,348 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 233 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:08,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 6189 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1001 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2022-11-25 22:25:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-11-25 22:25:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 9834. [2022-11-25 22:25:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9834 states, 5895 states have (on average 1.2698897370653095) internal successors, (7486), 6244 states have internal predecessors, (7486), 3080 states have call successors, (3080), 832 states have call predecessors, (3080), 850 states have return successors, (3691), 2939 states have call predecessors, (3691), 3076 states have call successors, (3691) [2022-11-25 22:25:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9834 states to 9834 states and 14257 transitions. [2022-11-25 22:25:09,906 INFO L78 Accepts]: Start accepts. Automaton has 9834 states and 14257 transitions. Word has length 229 [2022-11-25 22:25:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:09,907 INFO L495 AbstractCegarLoop]: Abstraction has 9834 states and 14257 transitions. [2022-11-25 22:25:09,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 22:25:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9834 states and 14257 transitions. [2022-11-25 22:25:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-25 22:25:09,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:09,913 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:25:09,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:10,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-25 22:25:10,126 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:25:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash -951142434, now seen corresponding path program 1 times [2022-11-25 22:25:10,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:10,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264164884] [2022-11-25 22:25:10,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:10,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-11-25 22:25:10,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264164884] [2022-11-25 22:25:10,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264164884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:10,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:10,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:25:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474018474] [2022-11-25 22:25:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:25:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:25:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:25:10,621 INFO L87 Difference]: Start difference. First operand 9834 states and 14257 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-25 22:25:14,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:25:16,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:25:18,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:25:22,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:22,735 INFO L93 Difference]: Finished difference Result 9834 states and 14257 transitions. [2022-11-25 22:25:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:25:22,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 215 [2022-11-25 22:25:22,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:22,764 INFO L225 Difference]: With dead ends: 9834 [2022-11-25 22:25:22,764 INFO L226 Difference]: Without dead ends: 9832 [2022-11-25 22:25:22,769 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 22:25:22,770 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 39 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:22,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 6008 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 972 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-11-25 22:25:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9832 states. [2022-11-25 22:25:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9832 to 9832. [2022-11-25 22:25:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9832 states, 5894 states have (on average 1.2685782151340346) internal successors, (7477), 6242 states have internal predecessors, (7477), 3080 states have call successors, (3080), 832 states have call predecessors, (3080), 850 states have return successors, (3691), 2939 states have call predecessors, (3691), 3076 states have call successors, (3691) [2022-11-25 22:25:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9832 states to 9832 states and 14248 transitions. [2022-11-25 22:25:24,496 INFO L78 Accepts]: Start accepts. Automaton has 9832 states and 14248 transitions. Word has length 215 [2022-11-25 22:25:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:24,497 INFO L495 AbstractCegarLoop]: Abstraction has 9832 states and 14248 transitions. [2022-11-25 22:25:24,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-25 22:25:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9832 states and 14248 transitions. [2022-11-25 22:25:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-25 22:25:24,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:24,502 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:25:24,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 22:25:24,503 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 22:25:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash -850607165, now seen corresponding path program 1 times [2022-11-25 22:25:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579419063] [2022-11-25 22:25:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:24,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-25 22:25:25,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:25,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579419063] [2022-11-25 22:25:25,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579419063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:25:25,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056638721] [2022-11-25 22:25:25,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:25,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:25,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:25,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:25,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1f6008-5b5c-420c-8384-74f23c9447de/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:25:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:27,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-25 22:25:27,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-25 22:25:27,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-25 22:25:27,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056638721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:27,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [444770625] [2022-11-25 22:25:27,870 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2022-11-25 22:25:27,870 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:27,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:27,886 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:27,886 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:29,371 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 9 treesize of output 11 [2022-11-25 22:25:29,444 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 9 treesize of output 11 [2022-11-25 22:25:29,535 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 9 treesize of output 11 [2022-11-25 22:25:29,618 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 9 treesize of output 11 [2022-11-25 22:25:29,783 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 9 treesize of output 11 [2022-11-25 22:25:29,883 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 9 treesize of output 11 [2022-11-25 22:25:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:30,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 62 [2022-11-25 22:25:30,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2022-11-25 22:25:31,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:31,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 80 [2022-11-25 22:25:31,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:31,889 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 9 treesize of output 11 [2022-11-25 22:25:31,972 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 9 treesize of output 11 [2022-11-25 22:25:32,072 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 9 treesize of output 11 [2022-11-25 22:25:32,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 488 treesize of output 415 [2022-11-25 22:25:32,613 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 9 treesize of output 11 [2022-11-25 22:25:32,687 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 9 treesize of output 11 [2022-11-25 22:25:32,850 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 9 treesize of output 11 [2022-11-25 22:25:32,948 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 9 treesize of output 11