./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 2329fc70 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_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/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_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 03:15:08,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:15:08,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:15:08,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:15:08,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:15:08,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:15:08,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:15:08,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:15:08,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:15:08,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:15:08,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:15:08,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:15:08,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:15:08,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:15:08,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:15:08,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:15:08,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:15:08,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:15:08,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:15:08,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:15:08,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:15:08,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:15:08,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:15:08,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:15:08,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:15:08,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:15:08,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:15:08,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:15:08,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:15:08,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:15:08,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:15:08,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:15:08,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:15:08,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:15:08,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:15:08,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:15:08,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:15:08,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:15:08,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:15:08,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:15:08,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:15:08,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 03:15:08,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:15:08,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:15:08,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:15:08,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:15:08,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:15:08,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:15:08,421 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:15:08,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:15:08,421 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:15:08,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:15:08,422 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:15:08,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:15:08,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:15:08,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:15:08,423 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:15:08,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:15:08,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:15:08,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:15:08,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:15:08,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:15:08,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:15:08,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:15:08,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:15:08,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:15:08,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:15:08,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:15:08,426 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:15:08,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:15:08,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:15:08,427 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:15:08,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:15:08,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:15:08,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:15:08,428 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_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2022-12-14 03:15:08,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:15:08,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:15:08,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:15:08,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:15:08,641 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:15:08,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-14 03:15:11,263 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:15:11,602 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:15:11,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-14 03:15:11,630 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/data/edc3130b1/7f0e82d9e543484e819fa7bb64214d60/FLAG0318a55d4 [2022-12-14 03:15:11,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/data/edc3130b1/7f0e82d9e543484e819fa7bb64214d60 [2022-12-14 03:15:11,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:15:11,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:15:11,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:15:11,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:15:11,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:15:11,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:11" (1/1) ... [2022-12-14 03:15:11,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ee72bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:11, skipping insertion in model container [2022-12-14 03:15:11,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:11" (1/1) ... [2022-12-14 03:15:11,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:15:11,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:15:12,488 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 03:15:12,498 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 03:15:12,640 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 03:15:12,658 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:15:12,667 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:15:12,706 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 03:15:12,766 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 03:15:12,767 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 03:15:12,767 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 03:15:12,768 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 03:15:12,772 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 03:15:12,772 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 03:15:12,773 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 03:15:12,773 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 03:15:12,780 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:13,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,070 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-12-14 03:15:13,070 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-12-14 03:15:13,109 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-12-14 03:15:13,114 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-12-14 03:15:13,118 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-12-14 03:15:13,122 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-12-14 03:15:13,135 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 03:15:13,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,136 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,153 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-12-14 03:15:13,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,157 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:13,158 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,158 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,162 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 03:15:13,167 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-12-14 03:15:13,167 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-12-14 03:15:13,168 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:13,168 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-14 03:15:13,168 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-12-14 03:15:13,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,177 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-12-14 03:15:13,177 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,191 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-12-14 03:15:13,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,212 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:13,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,213 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:13,218 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-14 03:15:13,218 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:13,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,219 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:13,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,220 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:13,221 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,221 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-14 03:15:13,222 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-12-14 03:15:13,223 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-14 03:15:13,224 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-14 03:15:13,224 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 03:15:13,225 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,254 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:15:13,255 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,268 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 03:15:13,273 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-12-14 03:15:13,273 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-12-14 03:15:13,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,275 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,277 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,284 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 03:15:13,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,288 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:13,288 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:13,288 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:13,290 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-12-14 03:15:13,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,291 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-12-14 03:15:13,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,292 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:13,292 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:13,293 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:13,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,294 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 03:15:13,295 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,295 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-14 03:15:13,295 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,301 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 03:15:13,302 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-14 03:15:13,302 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-12-14 03:15:13,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,316 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 03:15:13,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,317 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-14 03:15:13,318 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,319 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 03:15:13,319 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:13,320 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:13,320 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:13,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,322 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:13,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,323 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-12-14 03:15:13,324 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:13,525 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-12-14 03:15:13,541 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:15:13,545 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-12-14 03:15:13,546 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-12-14 03:15:13,547 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 03:15:13,547 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 03:15:13,547 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:13,548 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:13,549 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:13,550 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 03:15:13,934 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:15:14,083 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 03:15:14,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-12-14 03:15:14,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-12-14 03:15:14,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-12-14 03:15:14,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-12-14 03:15:14,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-12-14 03:15:14,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-12-14 03:15:14,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-12-14 03:15:14,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-12-14 03:15:14,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-12-14 03:15:14,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-12-14 03:15:14,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-12-14 03:15:14,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-12-14 03:15:14,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-12-14 03:15:14,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-12-14 03:15:14,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-12-14 03:15:14,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-12-14 03:15:14,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-12-14 03:15:14,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-12-14 03:15:14,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-12-14 03:15:14,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-12-14 03:15:14,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-12-14 03:15:14,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-12-14 03:15:14,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-12-14 03:15:14,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-12-14 03:15:14,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-12-14 03:15:14,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-12-14 03:15:14,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-12-14 03:15:14,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-12-14 03:15:14,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-12-14 03:15:14,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-12-14 03:15:14,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-12-14 03:15:14,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-12-14 03:15:14,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-12-14 03:15:14,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-12-14 03:15:14,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-12-14 03:15:14,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-12-14 03:15:14,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-12-14 03:15:14,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-12-14 03:15:14,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-12-14 03:15:14,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-12-14 03:15:14,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-12-14 03:15:14,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-12-14 03:15:14,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-12-14 03:15:14,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-12-14 03:15:14,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-12-14 03:15:14,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-12-14 03:15:14,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-12-14 03:15:14,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-12-14 03:15:14,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-12-14 03:15:14,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-12-14 03:15:14,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-12-14 03:15:14,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-12-14 03:15:14,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-12-14 03:15:14,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-12-14 03:15:14,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-12-14 03:15:14,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-12-14 03:15:14,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-12-14 03:15:14,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-12-14 03:15:14,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-12-14 03:15:14,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-12-14 03:15:14,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-12-14 03:15:14,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-12-14 03:15:14,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-12-14 03:15:14,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-12-14 03:15:14,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-12-14 03:15:14,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-12-14 03:15:14,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-12-14 03:15:14,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-12-14 03:15:14,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-12-14 03:15:14,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-12-14 03:15:14,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-12-14 03:15:14,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-12-14 03:15:14,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-12-14 03:15:14,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-12-14 03:15:14,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-12-14 03:15:14,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-12-14 03:15:14,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-12-14 03:15:14,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-12-14 03:15:14,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-12-14 03:15:14,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-12-14 03:15:14,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-12-14 03:15:14,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-12-14 03:15:14,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-12-14 03:15:14,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-12-14 03:15:14,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-12-14 03:15:14,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-12-14 03:15:14,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-12-14 03:15:14,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-12-14 03:15:14,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:15:14,552 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:15:14,617 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 03:15:14,617 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 03:15:14,619 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 03:15:14,619 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:15:14,620 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:15:14,621 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 03:15:14,622 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 03:15:14,622 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 03:15:14,623 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 03:15:14,623 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 03:15:14,623 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 03:15:14,623 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 03:15:14,623 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 03:15:14,624 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 03:15:14,626 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:14,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,640 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-12-14 03:15:14,640 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-12-14 03:15:14,650 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-12-14 03:15:14,651 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-12-14 03:15:14,651 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-12-14 03:15:14,652 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-12-14 03:15:14,655 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 03:15:14,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,656 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,660 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-12-14 03:15:14,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,661 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:14,661 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,661 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,662 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 03:15:14,663 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-12-14 03:15:14,663 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-12-14 03:15:14,663 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:14,663 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-14 03:15:14,663 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-12-14 03:15:14,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,665 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-12-14 03:15:14,665 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,669 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-12-14 03:15:14,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,673 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:14,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,674 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 03:15:14,675 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-14 03:15:14,675 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:14,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,676 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:14,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,677 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-14 03:15:14,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,678 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-14 03:15:14,678 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-12-14 03:15:14,679 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-14 03:15:14,679 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-14 03:15:14,680 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 03:15:14,680 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,683 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,684 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:15:14,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,687 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 03:15:14,688 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-12-14 03:15:14,688 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-12-14 03:15:14,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,690 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,691 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 03:15:14,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,693 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:14,693 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:14,694 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:14,695 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-12-14 03:15:14,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,695 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-12-14 03:15:14,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,696 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:14,696 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:14,696 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:14,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,697 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 03:15:14,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,698 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-14 03:15:14,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,699 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,699 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 03:15:14,699 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-14 03:15:14,699 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-12-14 03:15:14,702 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,703 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 03:15:14,703 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,704 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-14 03:15:14,704 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,705 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 03:15:14,706 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 03:15:14,707 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 03:15:14,707 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:15:14,708 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,708 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:15:14,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,709 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-12-14 03:15:14,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:15:14,715 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-12-14 03:15:14,736 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:15:14,737 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-12-14 03:15:14,737 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-12-14 03:15:14,738 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 03:15:14,738 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 03:15:14,738 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:14,738 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:14,739 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:14,739 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 03:15:14,749 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:15:14,754 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 03:15:14,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-12-14 03:15:14,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-12-14 03:15:14,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-12-14 03:15:14,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-12-14 03:15:14,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-12-14 03:15:14,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-12-14 03:15:14,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-12-14 03:15:14,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-12-14 03:15:14,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-12-14 03:15:14,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-12-14 03:15:14,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-12-14 03:15:14,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-12-14 03:15:14,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-12-14 03:15:14,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-12-14 03:15:14,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-12-14 03:15:14,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-12-14 03:15:14,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-12-14 03:15:14,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-12-14 03:15:14,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-12-14 03:15:14,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-12-14 03:15:14,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-12-14 03:15:14,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-12-14 03:15:14,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-12-14 03:15:14,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-12-14 03:15:14,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-12-14 03:15:14,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-12-14 03:15:14,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-12-14 03:15:14,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-12-14 03:15:14,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-12-14 03:15:14,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-12-14 03:15:14,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-12-14 03:15:14,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-12-14 03:15:14,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-12-14 03:15:14,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-12-14 03:15:14,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-12-14 03:15:14,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-12-14 03:15:14,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-12-14 03:15:14,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-12-14 03:15:14,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-12-14 03:15:14,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-12-14 03:15:14,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-12-14 03:15:14,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-12-14 03:15:14,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-12-14 03:15:14,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-12-14 03:15:14,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-12-14 03:15:14,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-12-14 03:15:14,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-12-14 03:15:14,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-12-14 03:15:14,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-12-14 03:15:14,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-12-14 03:15:14,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-12-14 03:15:14,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-12-14 03:15:14,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-12-14 03:15:14,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-12-14 03:15:14,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-12-14 03:15:14,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-12-14 03:15:14,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-12-14 03:15:14,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-12-14 03:15:14,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-12-14 03:15:14,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-12-14 03:15:14,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-12-14 03:15:14,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-12-14 03:15:14,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-12-14 03:15:14,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-12-14 03:15:14,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-12-14 03:15:14,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-12-14 03:15:14,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-12-14 03:15:14,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-12-14 03:15:14,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-12-14 03:15:14,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-12-14 03:15:14,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-12-14 03:15:14,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-12-14 03:15:14,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-12-14 03:15:14,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-12-14 03:15:14,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-12-14 03:15:14,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-12-14 03:15:14,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-12-14 03:15:14,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-12-14 03:15:14,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-12-14 03:15:14,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-12-14 03:15:14,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-12-14 03:15:14,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-12-14 03:15:14,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-12-14 03:15:14,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-12-14 03:15:14,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-12-14 03:15:14,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-12-14 03:15:14,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-12-14 03:15:14,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-12-14 03:15:14,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:15:14,944 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:15:14,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14 WrapperNode [2022-12-14 03:15:14,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:15:14,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:15:14,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:15:14,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:15:14,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,208 INFO L138 Inliner]: procedures = 635, calls = 2089, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4943 [2022-12-14 03:15:15,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:15:15,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:15:15,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:15:15,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:15:15,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,384 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:15:15,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:15:15,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:15:15,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:15:15,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (1/1) ... [2022-12-14 03:15:15,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:15:15,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:15:15,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:15:15,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:15:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 03:15:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 03:15:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-12-14 03:15:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2022-12-14 03:15:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2022-12-14 03:15:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 03:15:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 03:15:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-12-14 03:15:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-12-14 03:15:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-12-14 03:15:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-12-14 03:15:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 03:15:15,508 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 03:15:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-12-14 03:15:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-12-14 03:15:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 03:15:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 03:15:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 03:15:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 03:15:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 03:15:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 03:15:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 03:15:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 03:15:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:15:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2022-12-14 03:15:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2022-12-14 03:15:16,192 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:15:16,196 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:15:16,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 03:15:25,081 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:15:25,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:15:25,779 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 03:15:25,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:25 BoogieIcfgContainer [2022-12-14 03:15:25,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:15:25,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:15:25,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:15:25,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:15:25,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:15:11" (1/3) ... [2022-12-14 03:15:25,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bafd964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:25, skipping insertion in model container [2022-12-14 03:15:25,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:14" (2/3) ... [2022-12-14 03:15:25,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bafd964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:25, skipping insertion in model container [2022-12-14 03:15:25,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:25" (3/3) ... [2022-12-14 03:15:25,790 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-14 03:15:25,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:15:25,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-14 03:15:25,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:15:25,886 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;@306e7a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:15:25,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-14 03:15:25,895 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) [2022-12-14 03:15:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 03:15:25,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:25,903 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] [2022-12-14 03:15:25,903 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)] === [2022-12-14 03:15:25,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1634035905, now seen corresponding path program 1 times [2022-12-14 03:15:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:25,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942081990] [2022-12-14 03:15:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:26,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942081990] [2022-12-14 03:15:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942081990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:26,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:26,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983512532] [2022-12-14 03:15:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:26,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:26,691 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) [2022-12-14 03:15:29,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:30,734 INFO L93 Difference]: Finished difference Result 2661 states and 3809 transitions. [2022-12-14 03:15:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:30,736 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 [2022-12-14 03:15:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:30,755 INFO L225 Difference]: With dead ends: 2661 [2022-12-14 03:15:30,755 INFO L226 Difference]: Without dead ends: 1332 [2022-12-14 03:15:30,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:30,767 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1810 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:30,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 3180 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:15:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-12-14 03:15:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2022-12-14 03:15:30,887 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) [2022-12-14 03:15:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1812 transitions. [2022-12-14 03:15:30,896 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1812 transitions. Word has length 51 [2022-12-14 03:15:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:30,898 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1812 transitions. [2022-12-14 03:15:30,898 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) [2022-12-14 03:15:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1812 transitions. [2022-12-14 03:15:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 03:15:30,900 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:30,900 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] [2022-12-14 03:15:30,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:15:30,901 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)] === [2022-12-14 03:15:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1309339662, now seen corresponding path program 1 times [2022-12-14 03:15:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:30,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785171678] [2022-12-14 03:15:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:30,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:31,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:31,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785171678] [2022-12-14 03:15:31,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785171678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:31,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:31,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:31,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948217158] [2022-12-14 03:15:31,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:31,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:31,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:31,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:31,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:31,185 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) [2022-12-14 03:15:34,094 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 [] [2022-12-14 03:15:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:35,489 INFO L93 Difference]: Finished difference Result 1332 states and 1812 transitions. [2022-12-14 03:15:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:35,490 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 [2022-12-14 03:15:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:35,495 INFO L225 Difference]: With dead ends: 1332 [2022-12-14 03:15:35,495 INFO L226 Difference]: Without dead ends: 1330 [2022-12-14 03:15:35,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:35,497 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 1784 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:35,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 3132 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 03:15:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-12-14 03:15:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2022-12-14 03:15:35,561 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) [2022-12-14 03:15:35,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1810 transitions. [2022-12-14 03:15:35,568 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1810 transitions. Word has length 56 [2022-12-14 03:15:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:35,569 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1810 transitions. [2022-12-14 03:15:35,569 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) [2022-12-14 03:15:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1810 transitions. [2022-12-14 03:15:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 03:15:35,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:35,570 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] [2022-12-14 03:15:35,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:15:35,571 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)] === [2022-12-14 03:15:35,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash -14251156, now seen corresponding path program 1 times [2022-12-14 03:15:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:35,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203385372] [2022-12-14 03:15:35,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:35,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:35,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:35,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203385372] [2022-12-14 03:15:35,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203385372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:35,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:35,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:35,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914956786] [2022-12-14 03:15:35,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:35,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:35,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:35,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:35,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:35,817 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) [2022-12-14 03:15:39,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:40,147 INFO L93 Difference]: Finished difference Result 1330 states and 1810 transitions. [2022-12-14 03:15:40,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:40,147 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 [2022-12-14 03:15:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:40,152 INFO L225 Difference]: With dead ends: 1330 [2022-12-14 03:15:40,152 INFO L226 Difference]: Without dead ends: 1328 [2022-12-14 03:15:40,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:40,153 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1784 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:40,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3128 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 03:15:40,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-12-14 03:15:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1328. [2022-12-14 03:15:40,195 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) [2022-12-14 03:15:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1808 transitions. [2022-12-14 03:15:40,200 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1808 transitions. Word has length 61 [2022-12-14 03:15:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:40,200 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1808 transitions. [2022-12-14 03:15:40,200 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) [2022-12-14 03:15:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1808 transitions. [2022-12-14 03:15:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 03:15:40,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:40,202 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] [2022-12-14 03:15:40,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 03:15:40,202 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)] === [2022-12-14 03:15:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash 526881969, now seen corresponding path program 1 times [2022-12-14 03:15:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:40,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453004901] [2022-12-14 03:15:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:40,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:40,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453004901] [2022-12-14 03:15:40,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453004901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:40,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:40,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:40,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45169306] [2022-12-14 03:15:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:40,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:40,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:40,450 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) [2022-12-14 03:15:43,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:44,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:44,609 INFO L93 Difference]: Finished difference Result 1328 states and 1808 transitions. [2022-12-14 03:15:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:44,609 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 [2022-12-14 03:15:44,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:44,616 INFO L225 Difference]: With dead ends: 1328 [2022-12-14 03:15:44,616 INFO L226 Difference]: Without dead ends: 1326 [2022-12-14 03:15:44,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:44,617 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 1778 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 3124 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 [2022-12-14 03:15:44,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 3124 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 03:15:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-12-14 03:15:44,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2022-12-14 03:15:44,690 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) [2022-12-14 03:15:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1806 transitions. [2022-12-14 03:15:44,696 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1806 transitions. Word has length 66 [2022-12-14 03:15:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:44,697 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1806 transitions. [2022-12-14 03:15:44,697 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) [2022-12-14 03:15:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1806 transitions. [2022-12-14 03:15:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 03:15:44,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:44,699 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] [2022-12-14 03:15:44,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 03:15:44,699 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)] === [2022-12-14 03:15:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1307132549, now seen corresponding path program 1 times [2022-12-14 03:15:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:44,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703027713] [2022-12-14 03:15:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:44,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:44,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703027713] [2022-12-14 03:15:44,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703027713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:44,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:44,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288865519] [2022-12-14 03:15:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:44,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:44,931 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) [2022-12-14 03:15:47,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:48,457 INFO L93 Difference]: Finished difference Result 1326 states and 1806 transitions. [2022-12-14 03:15:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:48,457 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 [2022-12-14 03:15:48,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:48,462 INFO L225 Difference]: With dead ends: 1326 [2022-12-14 03:15:48,462 INFO L226 Difference]: Without dead ends: 1324 [2022-12-14 03:15:48,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:48,463 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 1775 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:48,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 3120 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 03:15:48,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-12-14 03:15:48,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2022-12-14 03:15:48,510 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) [2022-12-14 03:15:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1804 transitions. [2022-12-14 03:15:48,515 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1804 transitions. Word has length 71 [2022-12-14 03:15:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:48,515 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1804 transitions. [2022-12-14 03:15:48,515 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) [2022-12-14 03:15:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1804 transitions. [2022-12-14 03:15:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 03:15:48,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:48,517 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] [2022-12-14 03:15:48,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 03:15:48,517 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)] === [2022-12-14 03:15:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:48,517 INFO L85 PathProgramCache]: Analyzing trace with hash 414987134, now seen corresponding path program 1 times [2022-12-14 03:15:48,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:48,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622783873] [2022-12-14 03:15:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:48,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:48,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:48,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622783873] [2022-12-14 03:15:48,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622783873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:48,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:48,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:48,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923893215] [2022-12-14 03:15:48,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:48,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:48,718 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) [2022-12-14 03:15:51,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:52,731 INFO L93 Difference]: Finished difference Result 1324 states and 1804 transitions. [2022-12-14 03:15:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:52,732 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 [2022-12-14 03:15:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:52,736 INFO L225 Difference]: With dead ends: 1324 [2022-12-14 03:15:52,737 INFO L226 Difference]: Without dead ends: 1322 [2022-12-14 03:15:52,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:52,738 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1772 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:52,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 3116 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:15:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-12-14 03:15:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2022-12-14 03:15:52,802 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) [2022-12-14 03:15:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1802 transitions. [2022-12-14 03:15:52,806 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1802 transitions. Word has length 76 [2022-12-14 03:15:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:52,807 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1802 transitions. [2022-12-14 03:15:52,807 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) [2022-12-14 03:15:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1802 transitions. [2022-12-14 03:15:52,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 03:15:52,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:52,808 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] [2022-12-14 03:15:52,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 03:15:52,808 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)] === [2022-12-14 03:15:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:52,809 INFO L85 PathProgramCache]: Analyzing trace with hash 449763453, now seen corresponding path program 1 times [2022-12-14 03:15:52,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:52,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203927414] [2022-12-14 03:15:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:52,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:53,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:53,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203927414] [2022-12-14 03:15:53,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203927414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:53,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:53,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:53,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752537908] [2022-12-14 03:15:53,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:53,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:53,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:53,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:53,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:53,003 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) [2022-12-14 03:15:55,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:56,733 INFO L93 Difference]: Finished difference Result 1322 states and 1802 transitions. [2022-12-14 03:15:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:15:56,733 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 [2022-12-14 03:15:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:56,737 INFO L225 Difference]: With dead ends: 1322 [2022-12-14 03:15:56,737 INFO L226 Difference]: Without dead ends: 1320 [2022-12-14 03:15:56,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:56,738 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1769 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:56,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 3112 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 03:15:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-12-14 03:15:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-12-14 03:15:56,793 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) [2022-12-14 03:15:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1800 transitions. [2022-12-14 03:15:56,799 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1800 transitions. Word has length 81 [2022-12-14 03:15:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:56,800 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1800 transitions. [2022-12-14 03:15:56,800 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) [2022-12-14 03:15:56,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1800 transitions. [2022-12-14 03:15:56,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 03:15:56,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:56,802 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] [2022-12-14 03:15:56,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 03:15:56,802 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)] === [2022-12-14 03:15:56,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:56,802 INFO L85 PathProgramCache]: Analyzing trace with hash 141604204, now seen corresponding path program 1 times [2022-12-14 03:15:56,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:56,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121298733] [2022-12-14 03:15:56,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:15:57,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:57,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121298733] [2022-12-14 03:15:57,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121298733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:57,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:57,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:57,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969168340] [2022-12-14 03:15:57,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:57,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:15:57,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:57,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:15:57,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:15:57,003 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) [2022-12-14 03:15:59,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:01,079 INFO L93 Difference]: Finished difference Result 1320 states and 1800 transitions. [2022-12-14 03:16:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:01,079 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 [2022-12-14 03:16:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:01,085 INFO L225 Difference]: With dead ends: 1320 [2022-12-14 03:16:01,086 INFO L226 Difference]: Without dead ends: 1318 [2022-12-14 03:16:01,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:01,086 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1770 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:01,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 3104 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 03:16:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-12-14 03:16:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2022-12-14 03:16:01,143 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) [2022-12-14 03:16:01,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1798 transitions. [2022-12-14 03:16:01,146 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1798 transitions. Word has length 86 [2022-12-14 03:16:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:01,147 INFO L495 AbstractCegarLoop]: Abstraction has 1318 states and 1798 transitions. [2022-12-14 03:16:01,147 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) [2022-12-14 03:16:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1798 transitions. [2022-12-14 03:16:01,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 03:16:01,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:01,148 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] [2022-12-14 03:16:01,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 03:16:01,148 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)] === [2022-12-14 03:16:01,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:01,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1357175313, now seen corresponding path program 1 times [2022-12-14 03:16:01,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:01,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112740802] [2022-12-14 03:16:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:01,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:01,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112740802] [2022-12-14 03:16:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112740802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:01,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575441254] [2022-12-14 03:16:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:01,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:01,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:01,325 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) [2022-12-14 03:16:04,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:05,404 INFO L93 Difference]: Finished difference Result 1318 states and 1798 transitions. [2022-12-14 03:16:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:05,404 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 [2022-12-14 03:16:05,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:05,408 INFO L225 Difference]: With dead ends: 1318 [2022-12-14 03:16:05,408 INFO L226 Difference]: Without dead ends: 1316 [2022-12-14 03:16:05,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:05,409 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1762 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:05,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3104 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 03:16:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-12-14 03:16:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1316. [2022-12-14 03:16:05,467 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) [2022-12-14 03:16:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1796 transitions. [2022-12-14 03:16:05,470 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1796 transitions. Word has length 88 [2022-12-14 03:16:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:05,470 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 1796 transitions. [2022-12-14 03:16:05,471 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) [2022-12-14 03:16:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1796 transitions. [2022-12-14 03:16:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:05,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:05,472 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] [2022-12-14 03:16:05,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 03:16:05,472 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)] === [2022-12-14 03:16:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1263696820, now seen corresponding path program 1 times [2022-12-14 03:16:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:05,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125662538] [2022-12-14 03:16:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:05,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:05,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125662538] [2022-12-14 03:16:05,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125662538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:05,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:05,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:05,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301965775] [2022-12-14 03:16:05,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:05,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:05,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:05,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:05,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:05,638 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) [2022-12-14 03:16:08,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:09,696 INFO L93 Difference]: Finished difference Result 1316 states and 1796 transitions. [2022-12-14 03:16:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:09,697 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 [2022-12-14 03:16:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:09,702 INFO L225 Difference]: With dead ends: 1316 [2022-12-14 03:16:09,702 INFO L226 Difference]: Without dead ends: 1314 [2022-12-14 03:16:09,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:09,703 INFO L413 NwaCegarLoop]: 1550 mSDtfsCounter, 1761 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:09,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 3100 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:16:09,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-12-14 03:16:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2022-12-14 03:16:09,765 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) [2022-12-14 03:16:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1794 transitions. [2022-12-14 03:16:09,769 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1794 transitions. Word has length 93 [2022-12-14 03:16:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:09,769 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1794 transitions. [2022-12-14 03:16:09,769 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) [2022-12-14 03:16:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1794 transitions. [2022-12-14 03:16:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 03:16:09,770 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:09,771 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] [2022-12-14 03:16:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 03:16:09,771 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)] === [2022-12-14 03:16:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1767290411, now seen corresponding path program 1 times [2022-12-14 03:16:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:09,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162321690] [2022-12-14 03:16:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:09,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:09,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162321690] [2022-12-14 03:16:09,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162321690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:09,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:09,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852041134] [2022-12-14 03:16:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:09,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:09,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:09,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:09,943 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) [2022-12-14 03:16:12,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:13,847 INFO L93 Difference]: Finished difference Result 1314 states and 1794 transitions. [2022-12-14 03:16:13,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:13,847 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 [2022-12-14 03:16:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:13,851 INFO L225 Difference]: With dead ends: 1314 [2022-12-14 03:16:13,851 INFO L226 Difference]: Without dead ends: 1312 [2022-12-14 03:16:13,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:13,852 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 1758 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:13,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 3096 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 03:16:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-12-14 03:16:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2022-12-14 03:16:13,919 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) [2022-12-14 03:16:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1792 transitions. [2022-12-14 03:16:13,923 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1792 transitions. Word has length 98 [2022-12-14 03:16:13,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:13,923 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1792 transitions. [2022-12-14 03:16:13,924 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) [2022-12-14 03:16:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1792 transitions. [2022-12-14 03:16:13,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 03:16:13,925 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:13,925 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] [2022-12-14 03:16:13,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 03:16:13,925 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)] === [2022-12-14 03:16:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash 233331998, now seen corresponding path program 1 times [2022-12-14 03:16:13,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:13,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562469123] [2022-12-14 03:16:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 03:16:14,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:14,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562469123] [2022-12-14 03:16:14,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562469123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:14,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:14,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 03:16:14,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145156192] [2022-12-14 03:16:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:14,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:16:14,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:16:14,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:16:14,658 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) [2022-12-14 03:16:18,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:20,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:24,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:24,575 INFO L93 Difference]: Finished difference Result 1312 states and 1792 transitions. [2022-12-14 03:16:24,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:24,576 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 [2022-12-14 03:16:24,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:24,580 INFO L225 Difference]: With dead ends: 1312 [2022-12-14 03:16:24,580 INFO L226 Difference]: Without dead ends: 1310 [2022-12-14 03:16:24,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 03:16:24,581 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1748 mSDsluCounter, 3808 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 5355 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:24,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 5355 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1802 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 03:16:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-12-14 03:16:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2022-12-14 03:16:24,668 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) [2022-12-14 03:16:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1790 transitions. [2022-12-14 03:16:24,671 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1790 transitions. Word has length 131 [2022-12-14 03:16:24,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:24,671 INFO L495 AbstractCegarLoop]: Abstraction has 1310 states and 1790 transitions. [2022-12-14 03:16:24,671 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) [2022-12-14 03:16:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1790 transitions. [2022-12-14 03:16:24,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 03:16:24,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:24,672 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] [2022-12-14 03:16:24,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 03:16:24,673 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)] === [2022-12-14 03:16:24,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash 29170250, now seen corresponding path program 1 times [2022-12-14 03:16:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:24,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214863103] [2022-12-14 03:16:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:24,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:24,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:24,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214863103] [2022-12-14 03:16:24,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214863103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:24,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:24,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:24,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779457207] [2022-12-14 03:16:24,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:24,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:24,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:24,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:24,859 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) [2022-12-14 03:16:27,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:28,851 INFO L93 Difference]: Finished difference Result 1310 states and 1790 transitions. [2022-12-14 03:16:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:28,852 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 [2022-12-14 03:16:28,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:28,855 INFO L225 Difference]: With dead ends: 1310 [2022-12-14 03:16:28,855 INFO L226 Difference]: Without dead ends: 1308 [2022-12-14 03:16:28,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:28,856 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 1753 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:28,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 3088 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:16:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-12-14 03:16:28,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2022-12-14 03:16:28,944 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) [2022-12-14 03:16:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1788 transitions. [2022-12-14 03:16:28,947 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1788 transitions. Word has length 103 [2022-12-14 03:16:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:28,947 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 1788 transitions. [2022-12-14 03:16:28,948 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) [2022-12-14 03:16:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1788 transitions. [2022-12-14 03:16:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 03:16:28,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:28,949 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] [2022-12-14 03:16:28,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 03:16:28,949 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)] === [2022-12-14 03:16:28,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:28,949 INFO L85 PathProgramCache]: Analyzing trace with hash 796492588, now seen corresponding path program 1 times [2022-12-14 03:16:28,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:28,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096330176] [2022-12-14 03:16:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:28,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-14 03:16:29,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:29,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096330176] [2022-12-14 03:16:29,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096330176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:29,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:29,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:29,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674301677] [2022-12-14 03:16:29,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:29,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:29,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:29,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:29,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:29,351 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) [2022-12-14 03:16:32,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:35,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:35,086 INFO L93 Difference]: Finished difference Result 2504 states and 3451 transitions. [2022-12-14 03:16:35,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:35,087 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 [2022-12-14 03:16:35,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:35,096 INFO L225 Difference]: With dead ends: 2504 [2022-12-14 03:16:35,096 INFO L226 Difference]: Without dead ends: 2502 [2022-12-14 03:16:35,097 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 [2022-12-14 03:16:35,097 INFO L413 NwaCegarLoop]: 2288 mSDtfsCounter, 1763 mSDsluCounter, 5989 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s 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, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:35,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 8277 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 03:16:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-12-14 03:16:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2326. [2022-12-14 03:16:35,283 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) [2022-12-14 03:16:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3264 transitions. [2022-12-14 03:16:35,290 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3264 transitions. Word has length 128 [2022-12-14 03:16:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:35,290 INFO L495 AbstractCegarLoop]: Abstraction has 2326 states and 3264 transitions. [2022-12-14 03:16:35,290 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) [2022-12-14 03:16:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3264 transitions. [2022-12-14 03:16:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-14 03:16:35,292 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:35,292 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] [2022-12-14 03:16:35,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 03:16:35,292 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)] === [2022-12-14 03:16:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1565134434, now seen corresponding path program 1 times [2022-12-14 03:16:35,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:35,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601000009] [2022-12-14 03:16:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:35,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 03:16:35,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:35,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601000009] [2022-12-14 03:16:35,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601000009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:35,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:35,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:16:35,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145387543] [2022-12-14 03:16:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:35,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:16:35,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:35,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:16:35,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:16:35,466 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) [2022-12-14 03:16:37,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:38,853 INFO L93 Difference]: Finished difference Result 4613 states and 6628 transitions. [2022-12-14 03:16:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:16:38,854 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 [2022-12-14 03:16:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:38,862 INFO L225 Difference]: With dead ends: 4613 [2022-12-14 03:16:38,862 INFO L226 Difference]: Without dead ends: 2320 [2022-12-14 03:16:38,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:16:38,869 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1748 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:38,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 1539 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 03:16:38,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-12-14 03:16:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2022-12-14 03:16:39,091 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) [2022-12-14 03:16:39,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3255 transitions. [2022-12-14 03:16:39,098 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3255 transitions. Word has length 137 [2022-12-14 03:16:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:39,099 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3255 transitions. [2022-12-14 03:16:39,099 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) [2022-12-14 03:16:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3255 transitions. [2022-12-14 03:16:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 03:16:39,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:39,100 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] [2022-12-14 03:16:39,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 03:16:39,100 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)] === [2022-12-14 03:16:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash -970934073, now seen corresponding path program 1 times [2022-12-14 03:16:39,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:39,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161917231] [2022-12-14 03:16:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:39,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:39,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161917231] [2022-12-14 03:16:39,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161917231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:39,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:39,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:39,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41460494] [2022-12-14 03:16:39,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:39,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:39,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:39,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:39,270 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) [2022-12-14 03:16:41,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:43,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:43,216 INFO L93 Difference]: Finished difference Result 2320 states and 3255 transitions. [2022-12-14 03:16:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:43,216 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 [2022-12-14 03:16:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:43,227 INFO L225 Difference]: With dead ends: 2320 [2022-12-14 03:16:43,227 INFO L226 Difference]: Without dead ends: 2318 [2022-12-14 03:16:43,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:43,229 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 1745 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:43,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 3074 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 03:16:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-12-14 03:16:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2022-12-14 03:16:43,404 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) [2022-12-14 03:16:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3253 transitions. [2022-12-14 03:16:43,412 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3253 transitions. Word has length 108 [2022-12-14 03:16:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:43,412 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3253 transitions. [2022-12-14 03:16:43,412 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) [2022-12-14 03:16:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3253 transitions. [2022-12-14 03:16:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 03:16:43,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:43,413 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] [2022-12-14 03:16:43,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 03:16:43,413 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)] === [2022-12-14 03:16:43,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:43,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1251520174, now seen corresponding path program 1 times [2022-12-14 03:16:43,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:43,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771656890] [2022-12-14 03:16:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:43,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:43,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:43,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771656890] [2022-12-14 03:16:43,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771656890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:43,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:43,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:43,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128547876] [2022-12-14 03:16:43,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:43,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:43,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:43,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:43,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:43,588 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) [2022-12-14 03:16:46,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:47,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:47,547 INFO L93 Difference]: Finished difference Result 2318 states and 3253 transitions. [2022-12-14 03:16:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:47,548 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 [2022-12-14 03:16:47,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:47,554 INFO L225 Difference]: With dead ends: 2318 [2022-12-14 03:16:47,554 INFO L226 Difference]: Without dead ends: 2316 [2022-12-14 03:16:47,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:47,555 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 1742 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:47,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3070 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 03:16:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-12-14 03:16:47,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2316. [2022-12-14 03:16:47,722 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) [2022-12-14 03:16:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3251 transitions. [2022-12-14 03:16:47,728 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3251 transitions. Word has length 113 [2022-12-14 03:16:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:47,729 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 3251 transitions. [2022-12-14 03:16:47,729 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) [2022-12-14 03:16:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3251 transitions. [2022-12-14 03:16:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 03:16:47,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:47,730 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] [2022-12-14 03:16:47,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 03:16:47,730 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)] === [2022-12-14 03:16:47,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 633151569, now seen corresponding path program 1 times [2022-12-14 03:16:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:47,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46433677] [2022-12-14 03:16:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:47,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46433677] [2022-12-14 03:16:47,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46433677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:47,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:47,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:47,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192234320] [2022-12-14 03:16:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:47,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:47,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:47,940 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) [2022-12-14 03:16:50,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:51,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:51,743 INFO L93 Difference]: Finished difference Result 2316 states and 3251 transitions. [2022-12-14 03:16:51,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:51,743 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 [2022-12-14 03:16:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:51,750 INFO L225 Difference]: With dead ends: 2316 [2022-12-14 03:16:51,750 INFO L226 Difference]: Without dead ends: 2314 [2022-12-14 03:16:51,751 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 [2022-12-14 03:16:51,752 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1739 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:51,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3066 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 03:16:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-12-14 03:16:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2022-12-14 03:16:51,945 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) [2022-12-14 03:16:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3249 transitions. [2022-12-14 03:16:51,951 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3249 transitions. Word has length 118 [2022-12-14 03:16:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:51,952 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 3249 transitions. [2022-12-14 03:16:51,952 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) [2022-12-14 03:16:51,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3249 transitions. [2022-12-14 03:16:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 03:16:51,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:51,953 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] [2022-12-14 03:16:51,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 03:16:51,953 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)] === [2022-12-14 03:16:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:51,954 INFO L85 PathProgramCache]: Analyzing trace with hash 283341616, now seen corresponding path program 1 times [2022-12-14 03:16:51,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:51,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746936608] [2022-12-14 03:16:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:51,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:52,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:52,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746936608] [2022-12-14 03:16:52,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746936608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:52,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:52,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370181312] [2022-12-14 03:16:52,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:52,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:52,293 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) [2022-12-14 03:16:55,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:56,471 INFO L93 Difference]: Finished difference Result 2314 states and 3249 transitions. [2022-12-14 03:16:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:56,471 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 [2022-12-14 03:16:56,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:56,477 INFO L225 Difference]: With dead ends: 2314 [2022-12-14 03:16:56,477 INFO L226 Difference]: Without dead ends: 2312 [2022-12-14 03:16:56,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:56,478 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1736 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:56,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 3062 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:16:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-12-14 03:16:56,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2022-12-14 03:16:56,685 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) [2022-12-14 03:16:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3247 transitions. [2022-12-14 03:16:56,691 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3247 transitions. Word has length 123 [2022-12-14 03:16:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:56,691 INFO L495 AbstractCegarLoop]: Abstraction has 2312 states and 3247 transitions. [2022-12-14 03:16:56,692 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) [2022-12-14 03:16:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3247 transitions. [2022-12-14 03:16:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 03:16:56,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:56,693 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] [2022-12-14 03:16:56,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 03:16:56,693 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)] === [2022-12-14 03:16:56,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash -921218876, now seen corresponding path program 1 times [2022-12-14 03:16:56,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:56,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726059322] [2022-12-14 03:16:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:56,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:16:56,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:56,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726059322] [2022-12-14 03:16:56,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726059322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:56,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:56,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:56,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375158724] [2022-12-14 03:16:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:56,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:56,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:56,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:56,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:56,873 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) [2022-12-14 03:16:59,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:01,075 INFO L93 Difference]: Finished difference Result 2312 states and 3247 transitions. [2022-12-14 03:17:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:17:01,075 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 [2022-12-14 03:17:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:01,082 INFO L225 Difference]: With dead ends: 2312 [2022-12-14 03:17:01,082 INFO L226 Difference]: Without dead ends: 2310 [2022-12-14 03:17:01,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:01,083 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1733 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:01,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 3058 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 03:17:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-12-14 03:17:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2022-12-14 03:17:01,293 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) [2022-12-14 03:17:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3245 transitions. [2022-12-14 03:17:01,299 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3245 transitions. Word has length 128 [2022-12-14 03:17:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:01,299 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3245 transitions. [2022-12-14 03:17:01,300 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) [2022-12-14 03:17:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3245 transitions. [2022-12-14 03:17:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 03:17:01,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:01,301 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] [2022-12-14 03:17:01,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 03:17:01,301 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)] === [2022-12-14 03:17:01,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2107798461, now seen corresponding path program 1 times [2022-12-14 03:17:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:01,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489731104] [2022-12-14 03:17:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:01,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:17:01,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:01,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489731104] [2022-12-14 03:17:01,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489731104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:01,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:01,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:17:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619127373] [2022-12-14 03:17:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:17:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:01,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:17:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:17:01,464 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) [2022-12-14 03:17:04,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:05,349 INFO L93 Difference]: Finished difference Result 2310 states and 3245 transitions. [2022-12-14 03:17:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:17:05,350 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 [2022-12-14 03:17:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:05,355 INFO L225 Difference]: With dead ends: 2310 [2022-12-14 03:17:05,355 INFO L226 Difference]: Without dead ends: 2308 [2022-12-14 03:17:05,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:05,356 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1730 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:05,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 3054 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 03:17:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2022-12-14 03:17:05,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2022-12-14 03:17:05,572 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) [2022-12-14 03:17:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3243 transitions. [2022-12-14 03:17:05,578 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3243 transitions. Word has length 133 [2022-12-14 03:17:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:05,578 INFO L495 AbstractCegarLoop]: Abstraction has 2308 states and 3243 transitions. [2022-12-14 03:17:05,578 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) [2022-12-14 03:17:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3243 transitions. [2022-12-14 03:17:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-14 03:17:05,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:05,580 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] [2022-12-14 03:17:05,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 03:17:05,580 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)] === [2022-12-14 03:17:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:05,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1231510934, now seen corresponding path program 1 times [2022-12-14 03:17:05,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:05,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211214397] [2022-12-14 03:17:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:05,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-12-14 03:17:05,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:05,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211214397] [2022-12-14 03:17:05,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211214397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:05,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:05,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:17:05,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243388188] [2022-12-14 03:17:05,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:05,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:05,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:05,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:05,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:05,731 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) [2022-12-14 03:17:08,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:09,004 INFO L93 Difference]: Finished difference Result 4489 states and 6287 transitions. [2022-12-14 03:17:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:09,005 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 [2022-12-14 03:17:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:09,011 INFO L225 Difference]: With dead ends: 4489 [2022-12-14 03:17:09,011 INFO L226 Difference]: Without dead ends: 2302 [2022-12-14 03:17:09,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:09,016 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 1750 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:09,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 1523 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 03:17:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-12-14 03:17:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-12-14 03:17:09,243 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) [2022-12-14 03:17:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3234 transitions. [2022-12-14 03:17:09,250 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3234 transitions. Word has length 162 [2022-12-14 03:17:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:09,250 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 3234 transitions. [2022-12-14 03:17:09,250 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) [2022-12-14 03:17:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3234 transitions. [2022-12-14 03:17:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 03:17:09,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:09,252 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] [2022-12-14 03:17:09,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 03:17:09,252 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)] === [2022-12-14 03:17:09,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1956914512, now seen corresponding path program 1 times [2022-12-14 03:17:09,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:09,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152015011] [2022-12-14 03:17:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-14 03:17:09,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:09,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152015011] [2022-12-14 03:17:09,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152015011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:09,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:09,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:17:09,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998250117] [2022-12-14 03:17:09,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:09,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:17:09,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:17:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:09,781 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) [2022-12-14 03:17:15,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:18,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:20,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:23,579 INFO L93 Difference]: Finished difference Result 4514 states and 6411 transitions. [2022-12-14 03:17:23,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:17:23,580 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 [2022-12-14 03:17:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:23,586 INFO L225 Difference]: With dead ends: 4514 [2022-12-14 03:17:23,586 INFO L226 Difference]: Without dead ends: 2321 [2022-12-14 03:17:23,591 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 [2022-12-14 03:17:23,591 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 5 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:23,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5856 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-12-14 03:17:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2022-12-14 03:17:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2319. [2022-12-14 03:17:23,831 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) [2022-12-14 03:17:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3259 transitions. [2022-12-14 03:17:23,837 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3259 transitions. Word has length 167 [2022-12-14 03:17:23,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:23,837 INFO L495 AbstractCegarLoop]: Abstraction has 2319 states and 3259 transitions. [2022-12-14 03:17:23,837 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) [2022-12-14 03:17:23,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3259 transitions. [2022-12-14 03:17:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 03:17:23,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:23,839 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] [2022-12-14 03:17:23,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 03:17:23,839 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)] === [2022-12-14 03:17:23,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:23,839 INFO L85 PathProgramCache]: Analyzing trace with hash -698009528, now seen corresponding path program 1 times [2022-12-14 03:17:23,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:23,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260598266] [2022-12-14 03:17:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:23,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:17:24,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260598266] [2022-12-14 03:17:24,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260598266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:24,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:24,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:17:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430311796] [2022-12-14 03:17:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:24,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:17:24,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:24,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:17:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:17:24,028 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) [2022-12-14 03:17:27,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:29,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:32,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:32,803 INFO L93 Difference]: Finished difference Result 4568 states and 6483 transitions. [2022-12-14 03:17:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:17:32,804 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 [2022-12-14 03:17:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:32,814 INFO L225 Difference]: With dead ends: 4568 [2022-12-14 03:17:32,815 INFO L226 Difference]: Without dead ends: 4566 [2022-12-14 03:17:32,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:32,816 INFO L413 NwaCegarLoop]: 2073 mSDtfsCounter, 1700 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 5610 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:32,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 5610 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 826 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 03:17:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2022-12-14 03:17:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4529. [2022-12-14 03:17:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 2647 states have (on average 1.2652058934642991) internal successors, (3349), 2808 states have internal predecessors, (3349), 1462 states have call successors, (1462), 407 states have call predecessors, (1462), 408 states have return successors, (1640), 1395 states have call predecessors, (1640), 1460 states have call successors, (1640) [2022-12-14 03:17:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 6451 transitions. [2022-12-14 03:17:33,306 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 6451 transitions. Word has length 138 [2022-12-14 03:17:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:33,306 INFO L495 AbstractCegarLoop]: Abstraction has 4529 states and 6451 transitions. [2022-12-14 03:17:33,307 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) [2022-12-14 03:17:33,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 6451 transitions. [2022-12-14 03:17:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 03:17:33,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:33,308 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] [2022-12-14 03:17:33,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 03:17:33,308 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)] === [2022-12-14 03:17:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:33,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2118604856, now seen corresponding path program 1 times [2022-12-14 03:17:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:33,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375827581] [2022-12-14 03:17:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-12-14 03:17:33,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:33,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375827581] [2022-12-14 03:17:33,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375827581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:17:33,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113969957] [2022-12-14 03:17:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:33,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:17:33,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:17:33,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:17:33,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:17:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:34,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:17:34,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:17:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 03:17:34,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:17:34,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113969957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:34,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:17:34,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 03:17:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604263170] [2022-12-14 03:17:34,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:34,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:34,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:34,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:17:34,357 INFO L87 Difference]: Start difference. First operand 4529 states and 6451 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) [2022-12-14 03:17:36,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:37,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:37,808 INFO L93 Difference]: Finished difference Result 8887 states and 12614 transitions. [2022-12-14 03:17:37,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:37,809 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 [2022-12-14 03:17:37,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:37,820 INFO L225 Difference]: With dead ends: 8887 [2022-12-14 03:17:37,820 INFO L226 Difference]: Without dead ends: 4541 [2022-12-14 03:17:37,829 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 [2022-12-14 03:17:37,829 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 1670 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:37,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 1580 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 03:17:37,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2022-12-14 03:17:38,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 4539. [2022-12-14 03:17:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4539 states, 2648 states have (on average 1.262084592145015) internal successors, (3342), 2809 states have internal predecessors, (3342), 1466 states have call successors, (1466), 413 states have call predecessors, (1466), 414 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-12-14 03:17:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4539 states to 4539 states and 6452 transitions. [2022-12-14 03:17:38,357 INFO L78 Accepts]: Start accepts. Automaton has 4539 states and 6452 transitions. Word has length 167 [2022-12-14 03:17:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:38,357 INFO L495 AbstractCegarLoop]: Abstraction has 4539 states and 6452 transitions. [2022-12-14 03:17:38,357 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) [2022-12-14 03:17:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4539 states and 6452 transitions. [2022-12-14 03:17:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 03:17:38,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:38,359 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] [2022-12-14 03:17:38,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:17:38,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 03:17:38,561 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)] === [2022-12-14 03:17:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash 853121990, now seen corresponding path program 1 times [2022-12-14 03:17:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:38,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935014530] [2022-12-14 03:17:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:38,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:17:38,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:38,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935014530] [2022-12-14 03:17:38,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935014530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:38,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:38,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:17:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712357687] [2022-12-14 03:17:38,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:38,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:17:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:38,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:17:38,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:17:38,834 INFO L87 Difference]: Start difference. First operand 4539 states and 6452 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) [2022-12-14 03:17:40,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:42,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:44,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:44,712 INFO L93 Difference]: Finished difference Result 4539 states and 6452 transitions. [2022-12-14 03:17:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:17:44,712 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 [2022-12-14 03:17:44,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:44,723 INFO L225 Difference]: With dead ends: 4539 [2022-12-14 03:17:44,723 INFO L226 Difference]: Without dead ends: 4537 [2022-12-14 03:17:44,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:44,725 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 1719 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:44,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 3030 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 03:17:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2022-12-14 03:17:45,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 4537. [2022-12-14 03:17:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 2647 states have (on average 1.2618058179070646) internal successors, (3340), 2807 states have internal predecessors, (3340), 1466 states have call successors, (1466), 413 states have call predecessors, (1466), 414 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-12-14 03:17:45,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6450 transitions. [2022-12-14 03:17:45,261 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6450 transitions. Word has length 143 [2022-12-14 03:17:45,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:45,261 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 6450 transitions. [2022-12-14 03:17:45,261 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) [2022-12-14 03:17:45,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6450 transitions. [2022-12-14 03:17:45,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-14 03:17:45,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:45,263 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] [2022-12-14 03:17:45,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 03:17:45,263 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)] === [2022-12-14 03:17:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash 716056973, now seen corresponding path program 1 times [2022-12-14 03:17:45,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:45,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568900233] [2022-12-14 03:17:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:45,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 03:17:45,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:45,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568900233] [2022-12-14 03:17:45,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568900233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:45,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:45,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:17:45,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986902907] [2022-12-14 03:17:45,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:45,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:17:45,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:45,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:17:45,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:17:45,439 INFO L87 Difference]: Start difference. First operand 4537 states and 6450 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) [2022-12-14 03:17:48,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:51,246 INFO L93 Difference]: Finished difference Result 8921 states and 12895 transitions. [2022-12-14 03:17:51,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:17:51,247 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 [2022-12-14 03:17:51,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:51,268 INFO L225 Difference]: With dead ends: 8921 [2022-12-14 03:17:51,269 INFO L226 Difference]: Without dead ends: 8773 [2022-12-14 03:17:51,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:51,273 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1670 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:51,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 5248 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 723 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 03:17:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8773 states. [2022-12-14 03:17:52,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8773 to 8745. [2022-12-14 03:17:52,312 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) [2022-12-14 03:17:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8745 states to 8745 states and 12688 transitions. [2022-12-14 03:17:52,338 INFO L78 Accepts]: Start accepts. Automaton has 8745 states and 12688 transitions. Word has length 148 [2022-12-14 03:17:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:52,339 INFO L495 AbstractCegarLoop]: Abstraction has 8745 states and 12688 transitions. [2022-12-14 03:17:52,339 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) [2022-12-14 03:17:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8745 states and 12688 transitions. [2022-12-14 03:17:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 03:17:52,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:52,340 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] [2022-12-14 03:17:52,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 03:17:52,341 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)] === [2022-12-14 03:17:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1198869541, now seen corresponding path program 1 times [2022-12-14 03:17:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:52,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053043534] [2022-12-14 03:17:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-12-14 03:17:52,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:52,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053043534] [2022-12-14 03:17:52,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053043534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:52,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:52,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:17:52,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833699123] [2022-12-14 03:17:52,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:52,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:52,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:52,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:52,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:52,467 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) [2022-12-14 03:17:55,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:58,292 INFO L93 Difference]: Finished difference Result 18807 states and 27584 transitions. [2022-12-14 03:17:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:58,293 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 [2022-12-14 03:17:58,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:58,316 INFO L225 Difference]: With dead ends: 18807 [2022-12-14 03:17:58,316 INFO L226 Difference]: Without dead ends: 10244 [2022-12-14 03:17:58,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:58,346 INFO L413 NwaCegarLoop]: 1787 mSDtfsCounter, 142 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:58,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 3352 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 03:17:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-12-14 03:17:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 8746. [2022-12-14 03:17:59,648 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) [2022-12-14 03:17:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8746 states to 8746 states and 12689 transitions. [2022-12-14 03:17:59,677 INFO L78 Accepts]: Start accepts. Automaton has 8746 states and 12689 transitions. Word has length 183 [2022-12-14 03:17:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:59,677 INFO L495 AbstractCegarLoop]: Abstraction has 8746 states and 12689 transitions. [2022-12-14 03:17:59,677 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) [2022-12-14 03:17:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 8746 states and 12689 transitions. [2022-12-14 03:17:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 03:17:59,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:59,679 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:59,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 03:17:59,679 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)] === [2022-12-14 03:17:59,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1709873920, now seen corresponding path program 1 times [2022-12-14 03:17:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:59,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888300697] [2022-12-14 03:17:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-14 03:18:00,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:00,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888300697] [2022-12-14 03:18:00,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888300697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:18:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015834061] [2022-12-14 03:18:00,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:00,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:18:00,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:00,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:18:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:00,325 INFO L87 Difference]: Start difference. First operand 8746 states and 12689 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 03:18:03,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:06,093 INFO L93 Difference]: Finished difference Result 8804 states and 12722 transitions. [2022-12-14 03:18:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:18:06,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 230 [2022-12-14 03:18:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:06,112 INFO L225 Difference]: With dead ends: 8804 [2022-12-14 03:18:06,113 INFO L226 Difference]: Without dead ends: 8802 [2022-12-14 03:18:06,115 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 [2022-12-14 03:18:06,116 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1649 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 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, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:06,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 4571 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 743 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 03:18:06,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-12-14 03:18:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8802. [2022-12-14 03:18:07,478 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) [2022-12-14 03:18:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 12713 transitions. [2022-12-14 03:18:07,505 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 12713 transitions. Word has length 230 [2022-12-14 03:18:07,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:07,505 INFO L495 AbstractCegarLoop]: Abstraction has 8802 states and 12713 transitions. [2022-12-14 03:18:07,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 03:18:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 12713 transitions. [2022-12-14 03:18:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-12-14 03:18:07,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:07,507 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] [2022-12-14 03:18:07,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 03:18:07,507 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)] === [2022-12-14 03:18:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:07,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1131285665, now seen corresponding path program 1 times [2022-12-14 03:18:07,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:07,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384024447] [2022-12-14 03:18:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-14 03:18:07,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:07,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384024447] [2022-12-14 03:18:07,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384024447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:07,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:07,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:18:07,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792342427] [2022-12-14 03:18:07,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:07,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:18:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:18:07,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:18:07,661 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) [2022-12-14 03:18:11,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:15,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:15,602 INFO L93 Difference]: Finished difference Result 18158 states and 27091 transitions. [2022-12-14 03:18:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:18:15,602 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 [2022-12-14 03:18:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:15,624 INFO L225 Difference]: With dead ends: 18158 [2022-12-14 03:18:15,624 INFO L226 Difference]: Without dead ends: 9542 [2022-12-14 03:18:15,647 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 [2022-12-14 03:18:15,647 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 95 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:15,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4602 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 03:18:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9542 states. [2022-12-14 03:18:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9542 to 8818. [2022-12-14 03:18:17,273 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) [2022-12-14 03:18:17,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8818 states to 8818 states and 12729 transitions. [2022-12-14 03:18:17,302 INFO L78 Accepts]: Start accepts. Automaton has 8818 states and 12729 transitions. Word has length 186 [2022-12-14 03:18:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:17,302 INFO L495 AbstractCegarLoop]: Abstraction has 8818 states and 12729 transitions. [2022-12-14 03:18:17,302 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) [2022-12-14 03:18:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8818 states and 12729 transitions. [2022-12-14 03:18:17,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-12-14 03:18:17,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:17,304 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] [2022-12-14 03:18:17,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 03:18:17,304 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)] === [2022-12-14 03:18:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:17,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1898682103, now seen corresponding path program 1 times [2022-12-14 03:18:17,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:17,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265179779] [2022-12-14 03:18:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:17,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-14 03:18:17,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:17,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265179779] [2022-12-14 03:18:17,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265179779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:17,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:17,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:18:17,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333534121] [2022-12-14 03:18:17,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:17,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:18:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:17,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:18:17,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:17,642 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) [2022-12-14 03:18:21,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:25,143 INFO L93 Difference]: Finished difference Result 9232 states and 13194 transitions. [2022-12-14 03:18:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:18:25,143 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 [2022-12-14 03:18:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:25,163 INFO L225 Difference]: With dead ends: 9232 [2022-12-14 03:18:25,163 INFO L226 Difference]: Without dead ends: 9230 [2022-12-14 03:18:25,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:18:25,166 INFO L413 NwaCegarLoop]: 2375 mSDtfsCounter, 1597 mSDsluCounter, 6284 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:25,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 8659 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1285 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 03:18:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9230 states. [2022-12-14 03:18:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9230 to 8838. [2022-12-14 03:18:26,345 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) [2022-12-14 03:18:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8838 states to 8838 states and 12749 transitions. [2022-12-14 03:18:26,379 INFO L78 Accepts]: Start accepts. Automaton has 8838 states and 12749 transitions. Word has length 177 [2022-12-14 03:18:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:26,379 INFO L495 AbstractCegarLoop]: Abstraction has 8838 states and 12749 transitions. [2022-12-14 03:18:26,379 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) [2022-12-14 03:18:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8838 states and 12749 transitions. [2022-12-14 03:18:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 03:18:26,381 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:26,381 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] [2022-12-14 03:18:26,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 03:18:26,382 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)] === [2022-12-14 03:18:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash -835708053, now seen corresponding path program 1 times [2022-12-14 03:18:26,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:26,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852948581] [2022-12-14 03:18:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:26,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-12-14 03:18:26,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:26,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852948581] [2022-12-14 03:18:26,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852948581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:26,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265874837] [2022-12-14 03:18:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:26,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:26,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:18:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:27,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2383 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 03:18:27,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:27,903 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 [2022-12-14 03:18:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-12-14 03:18:27,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:27,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265874837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:27,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:27,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-14 03:18:27,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618280873] [2022-12-14 03:18:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:27,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:18:27,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:18:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:18:27,940 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) [2022-12-14 03:18:33,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:36,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:37,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:39,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:41,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:46,244 INFO L93 Difference]: Finished difference Result 17742 states and 26383 transitions. [2022-12-14 03:18:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:18:46,245 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 [2022-12-14 03:18:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:46,274 INFO L225 Difference]: With dead ends: 17742 [2022-12-14 03:18:46,274 INFO L226 Difference]: Without dead ends: 9090 [2022-12-14 03:18:46,296 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 [2022-12-14 03:18:46,297 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 28 mSDsluCounter, 4335 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:46,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5860 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1249 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 03:18:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9090 states. [2022-12-14 03:18:47,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 8902. [2022-12-14 03:18:47,577 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) [2022-12-14 03:18:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 12845 transitions. [2022-12-14 03:18:47,617 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 12845 transitions. Word has length 227 [2022-12-14 03:18:47,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:47,617 INFO L495 AbstractCegarLoop]: Abstraction has 8902 states and 12845 transitions. [2022-12-14 03:18:47,617 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) [2022-12-14 03:18:47,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 12845 transitions. [2022-12-14 03:18:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-12-14 03:18:47,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:47,620 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] [2022-12-14 03:18:47,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 03:18:47,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:47,820 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)] === [2022-12-14 03:18:47,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1063036391, now seen corresponding path program 1 times [2022-12-14 03:18:47,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:47,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869699378] [2022-12-14 03:18:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:47,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-12-14 03:18:48,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:48,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869699378] [2022-12-14 03:18:48,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869699378] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:48,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742236823] [2022-12-14 03:18:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:48,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:48,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:48,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:48,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:18:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:49,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 2390 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 03:18:49,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:49,159 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 [2022-12-14 03:18:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-12-14 03:18:49,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:49,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742236823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:49,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:49,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-14 03:18:49,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736782329] [2022-12-14 03:18:49,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:49,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:18:49,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:49,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:18:49,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:18:49,187 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) [2022-12-14 03:18:54,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:57,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:00,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:02,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:07,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:07,464 INFO L93 Difference]: Finished difference Result 17822 states and 26495 transitions. [2022-12-14 03:19:07,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:19:07,465 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 [2022-12-14 03:19:07,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:07,486 INFO L225 Difference]: With dead ends: 17822 [2022-12-14 03:19:07,486 INFO L226 Difference]: Without dead ends: 9106 [2022-12-14 03:19:07,509 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 [2022-12-14 03:19:07,509 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 32 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:07,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5893 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1262 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2022-12-14 03:19:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2022-12-14 03:19:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 8902. [2022-12-14 03:19:08,702 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) [2022-12-14 03:19:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 12837 transitions. [2022-12-14 03:19:08,730 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 12837 transitions. Word has length 228 [2022-12-14 03:19:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:08,731 INFO L495 AbstractCegarLoop]: Abstraction has 8902 states and 12837 transitions. [2022-12-14 03:19:08,731 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) [2022-12-14 03:19:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 12837 transitions. [2022-12-14 03:19:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 03:19:08,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:08,733 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] [2022-12-14 03:19:08,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 03:19:08,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:08,935 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)] === [2022-12-14 03:19:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash -150468484, now seen corresponding path program 1 times [2022-12-14 03:19:08,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:08,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623937337] [2022-12-14 03:19:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:09,750 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-12-14 03:19:09,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:09,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623937337] [2022-12-14 03:19:09,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623937337] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:19:09,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809660660] [2022-12-14 03:19:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:19:09,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:19:09,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 03:19:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:10,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 2392 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 03:19:10,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:19:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-12-14 03:19:10,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:19:10,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809660660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:10,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:19:10,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-14 03:19:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080650632] [2022-12-14 03:19:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:10,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:19:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:19:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:19:10,495 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) [2022-12-14 03:19:13,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:15,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:18,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:21,569 INFO L93 Difference]: Finished difference Result 15837 states and 22550 transitions. [2022-12-14 03:19:21,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:19:21,570 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 [2022-12-14 03:19:21,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:21,590 INFO L225 Difference]: With dead ends: 15837 [2022-12-14 03:19:21,590 INFO L226 Difference]: Without dead ends: 10294 [2022-12-14 03:19:21,600 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 [2022-12-14 03:19:21,601 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 233 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:21,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 6189 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1002 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 03:19:21,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-12-14 03:19:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 9834. [2022-12-14 03:19:22,947 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) [2022-12-14 03:19:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9834 states to 9834 states and 14257 transitions. [2022-12-14 03:19:22,976 INFO L78 Accepts]: Start accepts. Automaton has 9834 states and 14257 transitions. Word has length 229 [2022-12-14 03:19:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:22,977 INFO L495 AbstractCegarLoop]: Abstraction has 9834 states and 14257 transitions. [2022-12-14 03:19:22,977 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) [2022-12-14 03:19:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9834 states and 14257 transitions. [2022-12-14 03:19:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 03:19:22,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:22,979 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] [2022-12-14 03:19:22,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 03:19:23,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:23,181 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)] === [2022-12-14 03:19:23,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:23,182 INFO L85 PathProgramCache]: Analyzing trace with hash -28425147, now seen corresponding path program 1 times [2022-12-14 03:19:23,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:23,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505770101] [2022-12-14 03:19:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:23,477 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-14 03:19:23,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:23,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505770101] [2022-12-14 03:19:23,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505770101] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:23,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:23,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:19:23,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493551852] [2022-12-14 03:19:23,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:23,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:19:23,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:19:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:19:23,479 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) [2022-12-14 03:19:26,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:28,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:30,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:32,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:35,533 INFO L93 Difference]: Finished difference Result 9834 states and 14257 transitions. [2022-12-14 03:19:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:19:35,534 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 [2022-12-14 03:19:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:35,556 INFO L225 Difference]: With dead ends: 9834 [2022-12-14 03:19:35,556 INFO L226 Difference]: Without dead ends: 9832 [2022-12-14 03:19:35,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:19:35,559 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 39 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s 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, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:35,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 6008 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 972 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 03:19:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9832 states. [2022-12-14 03:19:36,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9832 to 9832. [2022-12-14 03:19:36,935 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) [2022-12-14 03:19:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9832 states to 9832 states and 14248 transitions. [2022-12-14 03:19:36,964 INFO L78 Accepts]: Start accepts. Automaton has 9832 states and 14248 transitions. Word has length 215 [2022-12-14 03:19:36,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:36,965 INFO L495 AbstractCegarLoop]: Abstraction has 9832 states and 14248 transitions. [2022-12-14 03:19:36,965 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) [2022-12-14 03:19:36,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9832 states and 14248 transitions. [2022-12-14 03:19:36,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-12-14 03:19:36,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:36,967 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] [2022-12-14 03:19:36,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 03:19:36,967 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)] === [2022-12-14 03:19:36,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1997627511, now seen corresponding path program 1 times [2022-12-14 03:19:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:36,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548425016] [2022-12-14 03:19:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-12-14 03:19:37,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:37,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548425016] [2022-12-14 03:19:37,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548425016] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:19:37,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834177154] [2022-12-14 03:19:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:37,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:37,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:19:37,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:19:37,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57864bbf-a5d9-4c28-bf98-d26cb85823ff/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 03:19:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:38,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-14 03:19:38,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:19:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-12-14 03:19:38,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:19:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-12-14 03:19:38,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834177154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 03:19:38,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1632153665] [2022-12-14 03:19:38,693 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2022-12-14 03:19:38,693 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 03:19:38,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 03:19:38,701 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 03:19:38,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 03:19:39,909 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 [2022-12-14 03:19:39,965 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 [2022-12-14 03:19:40,039 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 [2022-12-14 03:19:40,101 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 [2022-12-14 03:19:40,208 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 [2022-12-14 03:19:40,274 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 [2022-12-14 03:19:40,442 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 [2022-12-14 03:19:41,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:41,871 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-12-14 03:19:42,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 71 [2022-12-14 03:19:42,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-12-14 03:19:42,306 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 [2022-12-14 03:19:42,383 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 [2022-12-14 03:19:42,466 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 [2022-12-14 03:19:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:19:43,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 71 [2022-12-14 03:19:43,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-12-14 03:19:43,756 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 [2022-12-14 03:19:43,837 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 [2022-12-14 03:19:43,975 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 [2022-12-14 03:19:44,070 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